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#1 |
Registered User
Join Date: Jan 2015
Location: Wellington, New Zealand
Posts: 47
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71 K20 gearbox, transfer case and rear diff questions
Hi everyone.
I have a 71 GMC K20 and am looking to do some work on the drive train. Things are starting to get a bit loose and extra noisy and I figure with living in New Zealand (where parts are non-existent) I thought I might as well replace the drive train in one go and get her running tip-top for a number of years. I have been doing some research on providers however I thought my good friends I'd reach out to hear your thoughts on reputable vendors I can contact for reconditioned/new: 1. NV4500 (and any recommendations on clutches would be great) to replace the TH350 2. Transfer case (NP205) 3. Whole rear (eight lug, drum) - I currently have a Eaton HO52 and am looking to replace the whole rear end (given the difficulty in finding parts) with something where parts are a bit more readily available, e.g. Dana 60 or 14 bolt. Thanks very much - I really appreciate the knowledge on here and I definitely owe you all some photos! Thanks, Vaughan |
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#2 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,109
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Re: 71 K20 gearbox, transfer case and rear diff questions
For transmissions the folks at Novak have been great to me. I have rebuilt 2 SM420's with their parts, no complaints, nothing to return. Plus their web site is a wealth of knowledge that is rare these days.
https://www.novak-adapt.com Good luck.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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k20, nv4500, rear end |
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