Conversion Joint #'s

[chevyridinhigh79]

I am swapping in a Dana 60 and a 14BFF into my 77 k10 that has a 10 bolt front axle and a 12 bolt rear axle. i got the rear conversion joint number, but i was wondering if the number is the same for front and rear 10 bolts? what size u joints come standard in a heavy half w/ a front 10 bolt... 1330 or 1310? also my rear drive shaft is a lot larger in diameter than most (stock) heavy half rear drive shafts.

 

[bigblock72]

Originally all of the u-joints were 1310s. I'm assuming the 60 and 14 have 1350 joints. 1310 to 1350 conversion joint part # (neapco) 3-3140 or (NAPA) NPJ P348.

Get your drivelines built as soon as you can with standard joints, you're giving up a lot of strength with conversion joints, make sure you carry spares.

 

[Mudstud]

I would have to say the front 10 bolt is 1310 so your 60 (with stock yoke) and current front shaft will bolt right up. Normally 14 bolts come with 1350 yokes and your 12 bolt is prolly a 1310 also so you'll only need the one b@stard joint.