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Re: 3.21 gears in a 14 bolt
You'll find these commonly in 2wd 3/4 ton Suburbans and crewcabs. My '80 C20 Sub came with them. I found out when i installed an aftemarket tach and punched in the specs into an RPM calculator. If your motor has decent TORQUE, (400 lb ft +) you'll move these tall gears with 33's no problem all the while having decent lower highway revs. (1800 @ 60 mph)
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*UNDER CONSTRUCTION*
'80 Suburban C20 (C6P) (Silverado)
- '68 472 (Edelbrock 1813, PH8026 LT's, H pipe) / '91 4L80 (manual shift,vac modulator, 350 converter) / 14B FF 3.21 G80 34' s/ '96 GMT400 interior
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08-08-2017, 08:59 PM
Hybrid Mode
