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Frango100
01-04-2017, 08:17 PM
Hi guys, I want to change all four shocks on my 58 Bird. I understood that the Monroe 5801 will be ok upfront. But what about the rear? The Monroe 37191 is not good on a 58 model?
I just see that Rockauto has Monroe Matic Plus 31125 shocks for the 58. Anyone using these and is happy with them?

Frango100
01-06-2017, 06:37 AM
Anyone who can help me with this?

simplyconnected
01-06-2017, 06:52 AM
What type of ride are you looking for?

RustyNCa
01-06-2017, 01:12 PM
Anyone who can help me with this?

I'm bringing our 58 home from the body shop today. I can see, weather permitting, what the part number is on the KYBs I'm running. I would think the damping in the KYBs would be stiffer than Monroe's.

http://i103.photobucket.com/albums/m125/justacog/58TBird/th_20150524_095237_zps4jn5ymt6.jpg (http://s103.photobucket.com/user/justacog/media/58TBird/20150524_095237_zps4jn5ymt6.jpg.html)

Frango100
01-06-2017, 10:52 PM
I would like to have a comfortable ride. This car will only be for the fun and will not be driven hard. So a smooth comfortable ride is what iīm looking for.

jopizz
01-07-2017, 11:52 AM
The Monroe 31125 shocks will give you a ride as it came from the factory which is on the soft side. The Monroe 37191 shocks are for a Range Rover so I imagine they will be on the stiffer side.

John

Frango100
01-07-2017, 07:14 PM
I know the control will be better with stiffer shocks, but I kinda like the soft floating feeling. Anyone who is using the 31125 shocks overhere who can comment on their performance?

Frango100
01-10-2017, 06:00 AM
Anyone using the Monroe Matic Plus 31125 shocks and can advice if they are too soft?

Cheech347
01-15-2017, 09:18 AM
Any thoughts on which is better for my 60 Ford thunderbird ?Gabriel shock absorbers front & rear OR Monroe shock absorbers front and rear ?
I have Cooper radial tires which give it a softer ride from the steel ply tires...

Frango100
01-17-2017, 04:46 PM
I just ordered Monroe shocks for my Bird via Rockauto. Will take some time before they are here and I can commend anything about them. I have used Monroe and Gabriel on my Jeep Grand Cherokee before and the Gabriels became leaky quite soon (at less then 30K km when I remember well), so no more Gabriels for me.

RustyNCa
01-17-2017, 07:43 PM
Any thoughts on which is better for my 60 Ford thunderbird ?Gabriel shock absorbers front & rear OR Monroe shock absorbers front and rear ?
I have Cooper radial tires which give it a softer ride from the steel ply tires...

No idea, I stick with Koni's or KYBs

Frango100
01-30-2017, 07:37 PM
Feeling a bit stupid overhere:o.
Just got my shocks in today, to find out that the 58 models use an other type of shocks then the 59-60 models. The lower mount is not a stud, but an eye end. I could have seen it myself before ordering, but i didnīt look under the car.
Anyone has an idea which shock will fit on a 58 rear?

RustyNCa
01-30-2017, 08:13 PM
Feeling a bit stupid overhere:o.
Just got my shocks in today, to find out that the 58 models use an other type of shocks then the 59-60 models. The lower mount is not a stud, but an eye end. I could have seen it myself before ordering, but i didnīt look under the car.
Anyone has an idea which shock will fit on a 58 rear?

Just keep in mind, if you have a 58, you have to double check everything regarding the suspension compared with the 59-60 models. Like I said, if you can be patient, I can lift the rear of my 58 and look for a number on my KYB shocks, if you want to know that.

http://i103.photobucket.com/albums/m125/justacog/58TBird/th_20150524_095237_zps4jn5ymt6.jpg (http://s103.photobucket.com/user/justacog/media/58TBird/20150524_095237_zps4jn5ymt6.jpg.html)

jopizz
01-30-2017, 08:17 PM
I know the Thunderbird vendors carry them. I don't think any of the major auto parts stores stock them.

John

Frango100
01-30-2017, 09:27 PM
Just keep in mind, if you have a 58, you have to double check everything regarding the suspension compared with the 59-60 models. Like I said, if you can be patient, I can lift the rear of my 58 and look for a number on my KYB shocks, if you want to know that.

http://i103.photobucket.com/albums/m125/justacog/58TBird/th_20150524_095237_zps4jn5ymt6.jpg (http://s103.photobucket.com/user/justacog/media/58TBird/20150524_095237_zps4jn5ymt6.jpg.html)

Just checked the picture of your birds shocks, but it has the double stud. That doesnīt seem to be original. At least, i checked the birds manual now and it also shows an eye end on the lower side. I probably could fabricate a plate for the lower stud to go in, however the angle of the shock does not coincide with the angle of the lower mounting bracket.

RustyNCa
01-30-2017, 09:47 PM
Just checked the picture of your birds shocks, but it has the double stud. That doesnīt seem to be original. At least, i checked the birds manual now and it also shows an eye end on the lower side. I probably could fabricate a plate for the lower stud to go in, however the angle of the shock does not coincide with the angle of the lower mounting bracket.
What do you mean double stud?

jopizz
01-30-2017, 10:08 PM
His '58 shock has the rounded end with the pin that goes through. Your shocks have the stud at both ends.

John

RustyNCa
01-30-2017, 10:33 PM
His '58 shock has the rounded end with the pin that goes through. Your shocks have the stud at both ends.

John

Interesting, all I did was replace what I found under there? Being the 3rd owner and the second owner did nothing but drive it about two years and park it... wonder what happened?

jopizz
01-30-2017, 11:49 PM
Interesting, all I did was replace what I found under there? Being the 3rd owner and the second owner did nothing but drive it about two years and park it... wonder what happened?

Is your car a later build. It's possible Ford modified the mounting sometime during the year to use the dual stud type shocks.

John

RustyNCa
01-31-2017, 02:17 PM
Is your car a later build. It's possible Ford modified the mounting sometime during the year to use the dual stud type shocks.

John

Would you need my data plate or my vin number to know that? I have the vin here are work, but I'd have to get the data plate again, don't have a photo of it.

Frango100
01-31-2017, 03:30 PM
Would you need my data plate or my vin number to know that? I have the vin here are work, but I'd have to get the data plate again, don't have a photo of it.

You will need the numbers on the lower part of the VIN tag to find the production day and month.
See here for the data plate decoding: http://www.tbird.org/DataPlate/vdata.htm

RustyNCa
02-03-2017, 04:03 PM
You will need the numbers on the lower part of the VIN tag to find the production day and month.
See here for the data plate decoding: http://www.tbird.org/DataPlate/vdata.htm

Well the info on my plate says 09H, so that means the 9th day of August in 58?

Frango100
02-03-2017, 04:13 PM
Well the info on my plate says 09H, so that means the 9th day of August in 58?

Yes, that is right.

Frango100
02-03-2017, 07:50 PM
I disconnected the rear shock from the lower mount, and found that the shock would only extend a few centimeters until its stop (1" 1/2 more or less). That seems to be very little travel. I already found that when going over a speed bump, when accelerating a bit soon, that the rear wheel started spinning. I think that this has to do with the very small travel of the shock until its stop. Anyone knows how far the travel should be?
Installed the new front Monroe OESpectrum shocks yesterday, but couldnīt test them yet. The old shocks are still giving resistance, but have no air pressure in them or are just moving with too much force.

simplyconnected
02-04-2017, 08:17 AM
Did you buy Monroe 5936 or 33129 for the rears? They look just like John's illustration with a stud on top and cross bar on the bottom.
The extended length should be 20" and the travel should be just over 8".

Are you looking for AIR shocks or standard? - Dave

Frango100
02-04-2017, 09:51 AM
Did you buy Monroe 5936 or 33129 for the rears? They look just like John's illustration with a stud on top and cross bar on the bottom.
The extended length should be 20" and the travel should be just over 8".

Are you looking for AIR shocks or standard? - Dave

I bought the Monroe 31125 for the rears, but the measurement mentioned was for the existing rear shocks. This Monroe 31125 does not fit the 58 model, because it has studs on both sides, while the lower end should be an eye end. Iīm looking for standard shocks.
Will Monroe 5936 or 33129 fit the 58 model?
Just checked the Monroe 5936 and its a OE Spectrum shock. Will that give a comfortable ride?
I found a Monroe specifications list from 2015 with the shock dimensions, for who is interrested in this: http://www.monroe.com/downloads/install-instructions-guides/MonroeMountingLengthSpecifications.pdf

simplyconnected
02-04-2017, 03:28 PM
...Will Monroe 5936 or 33129 fit the 58 model?
Just checked the Monroe 5936 and its a OE Spectrum shock. Will that give a comfortable ride?..Yes.
Did you buy Monroe Spectrum shocks for the front? Do you want an original equipment ride?
If so, look up the shocks I suggested because they are Monroe Spectrum shocks. They both have 1/2" piston rods and they incorporate modern technology. More importantly, they have a stud on top and a tie bar on bottom. That's YOU!
5936 Shock ----- ----- XP5 S4 12.13" 20.25" 8.13" ----- P01136 & P00941
Broken down this means, it has a bottom cross tie with closed-hole centers at 2-1/2" apart, and a 3/8" stud on top. P0136 and P001136 are parts bags that include the rubbers, washers, nuts (for the top) and mounting bolts (for the bottom).

Sorry you bought the wrong shocks, but you need to carefully look at your car, especially rear shocks because they are easy to see. Now before you buy, carefully scrutinize both numbers I gave. Compare the dimensions to the shocks you take off. MEASURE. If you find anything questionable, ask our forum.

All the other numbers you gave don't apply to your car so I won't address them. - Dave

Frango100
02-04-2017, 04:07 PM
The stupid thing is that I have been laying under the car quite a bit, so I should have seen the lower shock ends to be eye ends. Someone only fabricated some bracket, so that they could put a shock with an open eye end and bolt on it. The shock in place now is one made in Brazil. I didnīt remove it yet for measurements, but I'm almost sure that this shock is too short and bottoms out too soon when going over a bump. I presume that the new shocks tie bar will fit normally, when the bracket is removed.
Yes, the front shocks I installed up front this week are Monroe OE Spectrumīs. Couldnīt test them yet, since its raining every day. And my bird doesnīt like water (or maybe its just me;))
Thanks for your answers Dave.

simplyconnected
02-04-2017, 04:44 PM
http://www.squarebirds.org/vbulletin/attachment.php?attachmentid=13648&stc=1&d=1485828466
This is your setup, right?
You know how to measure hole centers in the bottom plate. Use any scale, measuring from the beginning of one hole to the beginning of the opposite hole. If you measure in millimeters, that's ok because we can easily convert to fractions of an inch.

You may find your hole centers to spread across 2.5" but if they are closer, you need to know before ordering your new shocks. Also, notice that the illustration shows those to be 'clearance holes' for bolts and nuts with lock washers. Measure the hole diameters using a simple twist drill (in fractions of an inch). The holes may be 5/16" or maybe 3/8". I'm thinking, 5/16". We want to make sure you order the correct shocks this time. And yes, they should bolt on straight out of the box.

By the way, did you find the 5936 shocks in your PDF file? It's there. - Dave

Frango100
02-04-2017, 07:18 PM
Thanks again Dave. Yes, I saw the shock info in the list.
My setup is almost the same as the illustration shows, but the bottom plate where the lower shock mount attaches to, is different. But I think that that will not make any difference to the way its mounted though. I will measure the bolt holes tomorrow, on the job now.

Yellowbird
02-06-2017, 09:02 AM
My '58 was manufactured in September 1958.

It has the shock setup that Dave shows in the picture from the manual.

Frango100
02-06-2017, 10:05 AM
My '58 was manufactured in September 1958.

It has the shock setup that Dave shows in the picture from the manual.

Thanks Yellowbird, which brand/type of shocks are you using on the rear? How is the comfort/handling?

Yellowbird
02-06-2017, 01:24 PM
I will have to look at my records. I bought them from I believe Greg Hines on Ebay. I'm satisfied with them

Yellowbird
02-08-2017, 09:52 PM
The rear shocks have the number 739066 on them. I do not see a brand on them.
I purchased these from Greg Hire in Ft. Wayne Indiana.
His phone number is 260-484-0435. He advertised on Ebay.

Frango100
02-09-2017, 08:01 AM
Thanks Leonard, i found it via google as a Gabriel classic shock. I will see if i can find this shock here locally, that would save me some shipping costs.

Yellowbird
02-09-2017, 03:02 PM
I just want to remind you that my shocks are like the ones pictured from the service manual. It does not have the upper and lower stud.

Good luck!!!

Frango100
02-09-2017, 08:29 PM
I just want to remind you that my shocks are like the ones pictured from the service manual. It does not have the upper and lower stud.

Good luck!!!

But the drawing shows a stud on the upper side and an eye end on the lower. That is what I have as well.

Yellowbird
02-10-2017, 09:05 AM
That's great! Just wanted to make sure!

OX1
02-10-2017, 09:11 AM
No idea, I stick with Koni's or KYBs

Koni makes SB shocks? have PN's?

Frango100
02-13-2017, 07:58 AM
Measured the distance between the lower shock mounting bolts, but have a distance of 2 3/4" between them. That would mean the the lower mount should be an XP6, and that one i donīt see in the list from Monroe:(.
Or i just have to buy a lower open eye end shock, which is already installed on mine now.

simplyconnected
02-13-2017, 12:09 PM
Measured the distance between the lower shock mounting bolts, but have a distance of 2 3/4" between them. That would mean the the lower mount should be an XP6, and that one i donīt see in the list from Monroe:(.
Or i just have to buy a lower open eye end shock, which is already installed on mine now.OR, for $18.12/each (at rockauto.com), you can buy the 5936 shocks and open the holes.

There is only 1/4" difference between 2-1/2" and 2-3/4". That's .25" or 6.5mm.
You can either use an angle grinder and open the closed holes into "crows feet" (open holes) or use a burr to slot the holes. You don't need much, 3mm on each side.

For the price of this quality shock, I would open the holes.
BTW, your holes may not be spread that far apart. 2-3/4" is an odd size that most cars did not use. Re-check your measurement. - Dave

Frango100
02-21-2017, 10:58 AM
Iīm a bit lost with my rear shocks now. Measured the distance between the upper and the lower shock mount with the car level in the garage, and it measures 21,5". The shock in extended state measures 23". I understood that the shock should have an extended lenght of 20". I measured the ride height some time ago and it was within specs:rolleyes:.
My lower shock mount is not original, since a previous owner made a bracket to fit a shock with an eye end. The bracket is mounted on the axle, where normally the X-pin is mounted. I donīt see the bracket to be a problem, its just an other way to mount a shock. But the dimensions are out of specs. What can be wrong here???
Anyone can give me the height from the ground to the aft part of the wing? I measured the roof height before, which was within spec. But when i look at my rear wheel, i can see a lot more of the hub cap then i see on pictures of other 58 birds.

simplyconnected
02-21-2017, 11:19 AM
What part number shocks are you referring to? What did you get? Where are you measuring from? If the shock has a shut height of 20", that's what it has.

Your shocks are the lower stop for your suspension.

As the Ford illustration shows, your OEM shocks had a cross bar. Replacements should too. - Dave

Frango100
02-21-2017, 11:29 AM
I didnīt buy any new shock yet, just referring to the ones installed on the bird now. The shocks are from a Brazilian brand. The shock is still mounted on the upper side, so measuring from the upper side of the shock housing to the lower side of the shock bracket. That measurement is 23". While the 5936 shock is only 20" extended, it would never fit on my bird, because the distance between upper mount and lower mount is already 21,5" at normal ride height.

Frango100
03-07-2017, 07:33 PM
Just to be sure that the shocks are the problem for the harsh ride, i just removed them for a short road test. The shocks donīt seem to be my problem, but the springs. Even without the shocks, the ride is still very stiff. Ofcourse it bounces a bit, but not much. So it seems that the springs are for a much heavier vehicle. What is a good place to get 58 coil springs from?

RustyNCa
03-07-2017, 07:38 PM
Just to be sure that the shocks are the problem for the harsh ride, i just removed them for a short road test. The shocks donīt seem to be my problem, but the springs. Even without the shocks, the ride is still very stiff. Ofcourse it bounces a bit, but not much. So it seems that the springs are for a much heavier vehicle. What is a good place to get 58 coil springs from?

I'll trade ya, I hate the mushy soft ride on my 58. :)

Frango100
03-08-2017, 08:15 AM
I'll trade ya, I hate the mushy soft ride on my 58. :)

Are your springs as new?

RustyNCa
03-08-2017, 12:33 PM
Are your springs as new?
They were in 58.... Car was a two owner original car when it was given to me, paint is still original on her(what's left of it)

:)

Frango100
03-10-2017, 12:00 PM
Original springs from 58 will be compressed after so many years. Would prefer to put some new springs on. I found a site, where the pair of the rear springs cost $550. Did someone already install new springs from another car, which fit and perform well?

RustyNCa
03-10-2017, 01:01 PM
Original springs from 58 will be compressed after so many years. Would prefer to put some new springs on. I found a site, where the pair of the rear springs cost $550. Did someone already install new springs from another car, which fit and perform well?

$550 seems pretty steep. But yes, I wouldn't be surprised if my springs are shot, but I do like the lower height they are sitting at.

Astrowing
03-11-2017, 09:05 PM
I got a set of the 5936s that Dave suggested. Anxious to get them installed.

Frango100
03-14-2017, 10:09 AM
I got a set of the 5936s that Dave suggested. Anxious to get them installed.

Ok, let us know how they perform. I will first order a set of rear springs via Carl and see how the ride quality improves. If still not the way i want it, i will get some new shocks as well.

OUR5T8BIRD
03-14-2017, 12:23 PM
Anyone who can help me with this?

Not sure if this is any help but these are the shock numbers I have from my '58 restoration . Perhaps you can use them as cross reference .

Rear shocks, part # B8S 18125-A or Rotunda R22M .

Hope that helps .

Frango100
03-14-2017, 01:41 PM
Not sure if this is any help but these are the shock numbers I have from my '58 restoration . Perhaps you can use them as cross reference .

Rear shocks, part # B8S 18125-A or Rotunda R22M .

Hope that helps .

Thanks, 58Tbird.