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Posted: 04/09/08
07:41 AM
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Hi Guys, I'm restoring my Dad's 66 GMC 3/4 ton and need to know rearend ratio. Some say it's a 370 or 373. I want to repower w/ 350 crate Chevy and 700-R4 auto since I don't have a rt. hand. It's presently inline 6-3 on tree plain jane. Any help appreciated.
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Posted: 04/10/08
04:59 AM
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Not sure what you are asking? What ratio???
Rear end, compression
Please explain a bit more.
Thanks
68 chop top 327 5 speed Stereo and AC. A real hot rod has a clutch. Anyone can modify it BUT it takes a real man to chop one up. See my truck in Reader's Ride and vote on it!
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Posted: 04/10/08
09:06 AM
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Easy! Raise the rear end off the ground, rotate the rear tire and count the number of revolutions the drive shaft makes. Use some chalk to mark the tire and drive shaft makes it easier.
A 350 crate with 700-R4 will make that a sweet ride. With the over drive transmission, that will match up well with the 3.73 rearend gears.
68 chop top 327 5 speed Stereo and AC. A real hot rod has a clutch. Anyone can modify it BUT it takes a real man to chop one up. See my truck in Reader's Ride and vote on it!
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