Originally Posted by ncbird
The Mustang guys have put up some very usefull history and info on the Ford 9in. Look up kevinstang and ultrastang 9 inch. They answer a lot of the questions about the different 9 in and how to ID them. Interesting the 1960 Bird had the big bearing rear end. The easy way to identify the bearing size is by the size of the bolts holding the axle retainer.
Hi ncbird, I went through all the sites and there is no definite info on 59 t-bird, now Dakota had lg outer bearings and you would think that would be 31 spline but no he has 28 spline. I can't get a positive answer guess I'm going to have to pull it out and remove axle and count splines. Thanks for your help. Tommy"