Join Date: Sep 1999
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Re: NP 205...is slip yolk normal?
I have a little experience here. Every 205 I've seen behind a manual has had a fixed yoke. This is mostly 70-80's gm stuff I've seen. The one factory 1980 th400/205 setup I saw had a slip yoke on the transfer rear output. Also the military had CUCV's(early 80 gm pickups and blazers)-most of these had a th400/np208, but a few variants had the 205, and these all had slip yokes also. When I swapped my 203 for a 205 behind a th 400, I had to get a factory tranny output shaft, factory adapter plate, and a factory input gear for the transfer. This is a 32 spline male output on the tranny and a 32 spline female for the transfer with no spud shaft as some of the advance adapter setups use.
The new transfer input gear was for a 1 ton application (I was told) and required machining the transfer housing to accept the larger input bearing. This setup used a longer adapter (6" if I remember right) while the factory th400/203 used a 1" thick adapter plate. However, the 205 is shorter overall than the 203 and saved me 8" of drivetrain length, which cured my driveshaft angle problems. I used a 205 from a manual application, which uses a 10 spline male input originally, and a fixed rear yoke(which saves length over a slip yoke). Bottom line, the fixed yokes are more common in my experience. You may be able to swap the rear output housing and gears from one to the other, never tried it though. This is kinda long, hope it helps.
Greg 89 XJ-stock, 83 CJ-7/4.0HO-t18-d300-locked-2.5" rancho-32 bfg mt, 79 Blazer/454-t400-np205-locked-3/4 ton axles-35 bfg, 67 CJ-5/231-t18-d18-4.88-front disc-rear 11" drum/front locked/30-9.50's