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  #1 (permalink)  
Old 10-10-2002, 07:10 PM
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Post 57 chevy rear end

I have built few 60's cars in the past, but never anything older than 67. Now I bought a 57 chevy 210 post and want to make it into a decent hot rod.
My plan is to have a 396 with a 700 R 4 in it.
My questions are many .... I would like to change many components with as little work or expense as possible (don't we all).
To begin with, REAR END, is there anything from newer chevy's that will bolt in or with very little modifications.
Power steering unit from newer car, disk brakes from a donor car. I would like to use whatever I can find at my local wrecker if possible. Has anyone done that???
Please help, it is a lot easier to find guys that experienced this than to invent it all by myself.

Stan

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Old 10-12-2002, 02:48 AM
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The Hot Lick with these early chevies in the Old Days was either a big Olds rear or a FORD 9".

I am no GM expert, but want to bring this back to the top so that some of these late rising GM Nuts can maybe help you.
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Old 10-13-2002, 03:52 PM
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Far from an expert, but 3rd member from 55thru 64 will interchange. There are some differences in the outter axle bearings in the 55,56, but not a big deal. Don't know about the availability of posis in all those years, but you can get as small as a 3.08 in 64 and 4.11 in all. I think they go something like 3.08, 3.36, 3.54, 3.76, 4.11 an 4.56. Power steering should not be too difficult to adapt from the 60's style. 57 valve and cylinder setups are pricey and not too good. Restorers are willing to pay the big bucks. Check your aftermarket 55, 56, 57 Chevy catalogues for the power brake info. It's out there. I've logged 270,000 miles on a 57 rearend om my 36 PU and the last 75,000 have been with a 700R4. I replaced the outter wheel bearings and seals at about l60,000.
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Old 10-13-2002, 05:19 PM
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right trees. I have a 57 axle housing in my coupe. Has a set of 3.36 gears in it. 57 bearings are different from the 55-56 and 58 and up. I have some more info somewhere on my computer. Will post as soon as I find it.
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Old 10-15-2002, 03:38 PM
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Thanks all you guys, it will help some. Another question is if there is an rear axle that I can use from a later year Chevy without too much modification. I can do most anything with post 67 models but pretty slow with my 57.
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Old 10-16-2002, 03:02 AM
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Post 64 axles are wider, thus no direct swap of axles. Send $$$ !!!.
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Old 10-16-2002, 07:20 AM
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Trees, that's not what I was hoping to hear. I have been told that some mid size rear ends are only 1" wider than the 57's, it needs to have mounting blocks moved etc. I needed to know if there are any mid size donors better than others.
Thank you for all your help.
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Old 10-17-2002, 04:54 AM
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Yo guys. There is a good place to get these answers. Try: www.chevytalk.com and go to the 55-57 modified forum. Folks there live and breath tri-fives.
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Old 10-17-2002, 06:20 PM
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thanks all u guys, I think all your suggestions will give me enough to keep me busay for a while. Great site 56wagon, thanks.
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Old 10-20-2002, 12:30 AM
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I had a bunch of 57's when they were cheap and raced several as well as built a number for customers. The rear end is ok at lower (numerically) ratios for street if you don't abuse it but...hang a big block or blower in one and you better have a rev limiter for when the rear end lets go. I had one guy tear the pinion right off the housing along with the drive shaft. Luckly he had a hoop. I busted a 5.38 with a 283 hp FI 4sp with street tires in the early 60's. We all used to carry a spare rear end with us. I used to leave every other bolt out of the carrier and axels so I could change them faster. About 15 minutes was average time floor to floor. The axels are very weak too. The 54 to 57 Olds rear end was almost a drop in but was very limited in ratios....Very very strong however. Around 3.23 and 3.55 was pretty common. They may be tough to come by today. Some early 9" fords and Mustangs are pretty close on width so check them out on the Ford sites.
best I can do for you.

bentwings
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Old 12-24-2002, 05:09 AM
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[quote]Originally posted by Ice0:
<strong>Thanks all you guys, it will help some. Another question is if there is an rear axle that I can use from a later year Chevy without too much modification. I can do most anything with post 67 models but pretty slow with my 57.</strong><hr></blockquote>
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