Hello everyone i am going from an 8.8 rear end to a 9" but as usual its not working out perfectly. What can i do if my drive shaft is too small for the 9"? is there an adapter i can use or if you guys know of any drive shafts i can get from a pull a part that would work for this. I have a 302 with a C4 transmission. Thanks guys id appreciate any feedback or links to other threads with the same questions.
What do you mean by the driveline is too small for the 9", is it too short or are the u joints that go into the 9" yoke too small. If it is the u joints are too small there is a u joint that you can buy that will convert your driveline to adapt to 9". Sorry I cant remember the # right off hand but I know there is someone on here that will tell you if indeed that is the problem. You could also get a different yoke for the 9" but that is much harder to do
Different yokes for different folks I ran into this issue a couple time now, one time I had to buy 2 different u joints to get things right because of diameter of cap going into rearend, both times I was using a rearend out of a 57 Ford
what i mean is the lenght of the actual drive shaft is fine but the part that is strapped down to the 9" by the u bolts is too short. The 9" is wider. In other words the u bolts barely grab on to the drive shaft. Sorry i dont know rear end lingo guys =( i dont know what the yoke is or anything.
The yoke, or companion flange, is what connects the rear end pinion gear to the driveshaft, via a universal joint. Its the part with the straps or clamps, one on each side. Sounds like you need a different universal joint.
