Quote:
Originally Posted by MaxPF
Now comes the fun part. I go to put it back together only to find out that the outer pinion bearing doesn't want to slip over the pinion shaft. WTF?!?! I fuss with it some more, and bigger than $#!t I manage to pop the garter spring off the seal WTF, is Mercury in retrograde or something? Of course, there is no way to re-install the spring with the seal in place, so I say eff it and remove the seal. At least now I can remove the outer pinion bearing from the support assembly and see what the deal is. Simple answer: it is a light PRESS FIT onto the pinion shaft! By this time I am swearing a littany of curses at the engineer who took a perfectly good design (the original GM 14BFF) and decided to "improve" upon it.
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Looks like my memory was faulty. According to my 1991 shop manual,the 14b axles have always had press-fit outer pinion bearings. It was every but as much fun to assemble as I hoped it would be.
Cliff notes for those who have assembled D60' and D70's, 10b's and 14bsf's; if you think the crush sleeves on these axles are a bish to compress, you haven't had the pleasure of working on a 14bff. Now granted, Snap-On air impacts are a bit weak-sauce compared to an Ingersoll-Rand unit, but mine (1/2" drive) has always been able to crush D60, D70, 10b, and 14bsf sleeves. The brand new sleeve in the 14bff just laughed at it. I ended up having to break out the 3/4" long-handle ratchet with a cheater bar and reef on it for a half hour to get it crushed to the specified preload. This thing was a stone bich that I have no desire to repeat. IF I have to do another one in the future I guarantee I will pre-crush the sleeve in a press to within .020" of final length to safe a lot of grief. Or, borrow a 3/4" drive impact.
Anyway, got it running now. I'm hoping it fixes the vibe problem, but I'm not holding my breath...
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1991 V1500 Blazer (Silverado), 5.9L 12V P-pumped Cummins (5x .012 sac injectors, #6 fuel plate, WH1C with external 38mm wastegate running 30psi), NV4500 with 1-⅜" input shaft, SBC Con-O clutch, NP205, HAD, 4.10 D61/14BFF spinning 37" Nitto Exo's
"I got a shotgun, a rifle, and a four wheel drive and a country boy can survive."