u joint question - 72 satty

[jprather]

ok guys, my mind has gone blank..

i to replace the drive shaft on my 72 satty, right now i have the small u-joint up, and a " bastard" u joint in the rear. i want to put the bigger u joints from and rear.

what do i need to tell shop that will build it , i know i need a new tail shaft for trans , but my mind will not come up with what the u-joint couplers on the end of the driveshaft are called or part #

god I hate getting older ! memory recall is getting harder

 

[pnora]

Bring the shaft to them. They will know. Large joint is the 7290. You most likely have a crossover joint on the rear 7260/7290.

 

[jprather]

correct, thank you, my mind just went away !

 

[T2R9]

You will also need a new 7290 slip yoke for the trans, Dr Diff carries them.

 

[R413]

Buy the slip yoke from dr Diff, the driveline shop will just charge you more for one.

Yes 7290 is the common big joint with retaining clips on the inside.

 

[Bird 426]

The driveshaft shop can get ALL of it for you. Probably want to just replace all of it. My shop didn't want to mess with mine when I did this.

 

[#41]

If you want to try and upgrade to a stout aluminum shaft, try Denny's Driveshafts. They are an awesome upgrade and will build a driveshaft off your exact specs.