View Full Version : 2.91 rear diff Gears

04-03-2012, 12:25 PM
Just a side note for us 430cid powertrain Birders.

I know Bart Como, years back, beat me down this road on his rear diff overhaul. I have found that Richmond gear does off the original Ford 2.91 gear ratio for our rare birds!!

At a heafty $351.99 our original ratio can be replaced with a new ring & pinion gear set. I just recently ran into this problem myself and have decided to go back with a 3.00 ratio since it can be had for just $170.99.

Just wanted to make a note for anyone else in the future. I bought my overhaul items at www.summitracing.com (http://www.summitracing.com)

-Jon in TX.

04-03-2012, 09:06 PM
you won't notice the diff. Pun intended.:D Mike

04-04-2012, 09:37 AM
That's kind of what I was thinking... ;)

(great minds think alike)

-Jon in TX.