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Old 12-16-2006, 10:22 PM   #32
mdlackey
Registered User
 
Join Date: May 2006
Location: Denver ,CO
Posts: 47
Re: 5 speed conversion with pics

Well, I had to have a new length of "pipe" made for my prop shaft, since I mis-measured the 2nd cut. The initial cut of my original prop shaft (roughly 6") was about right ... should've been about 5 1/2" total.

HOWEVER, my NV3500/MG5 tranny came out of a '94 GMC 1500 ... the "front"/prop shaft u-joint, right behind the tranny needed to measure 3 5/8" x 3 5/8". My 68's u-joint was 3 5/8" x 3 3/4". Seemed to be a difference between the '94 Chevy and the '94 GMC, but could've been a mis-quote of part number and part ...

3 5/8" x 3 5/8" u-joint: PDQ part # 2-0053 (Pep Boys)
U-joint strap kit: NAPA part # 260-4178

Now, I have to try and get my drive angles within spec. Believe that I may have to use a spacer to raise the carrier bearing, rarther than lower the rear of the tranny ... starts to put a real angle on the prop shaft and believe that it will start to stress the engine mounts, too.

Anyone know if a return spring ... or anything for that matter ... was used on the VN3500/MG5 trannys to keep the throwout bearing off of the pressure plate spines?

Pics to follow ...

Thanks,
Dave
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