Originally posted by screamer63_1979
Here's the deal...I got a 90 Wrangler that has been lifted and converted from a 4 cyl to a V8 using a 700R4 and an S10 transfer case. The front driveshaft is missing.

How do i figure the proper lenght for a new one? When I look this up in a Jeep catalog, they list 2 lengths - one for the 4cyl and one for the 6.

Well...this being a V8 conversion with a 3" suspension lift levase me stumped!

I can easily measure the at rest lenght U-joint center to center, and jack it up to let the suspension extend and measure that. Not sure how to compress the suspension to measure that?

TIA

chris
There shouldn't be too much difference in length with suspension travel. If there is you my have trouble keeping it together. If you raised the suspension 3" you should adjust engine/trans so it lines up with the pinion and also the pinion angle lines up with the engine/trans. Then put a yoke in the tans. allowing a little room for sliding in & out (so the yoke doesn't bottom out against the trans.) then measure tans. yoke to pinion yoke.