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#1 |
Registered User
Join Date: Nov 2004
Location: INDIANA
Posts: 44
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im wanting to put an overdrive trans in my truck when i get started on it. which would you all prefer? im not sure what rear gear the truck has in it but its real low. 67 3/4 ton with a '74 350 and the original 4 spd granny gear. which trans would be best and why? what all is involved in this swap? crossmember? driveshaft? what year trans should i look for? i want one that not computer controlled of course. thanks for the help fellas!
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current projects: 67 c20 w/350 4spd 74 camaro 355/th400 83 malibu wagon 80 malibu wagon ![]() ![]() |
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#2 |
Registered User
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,771
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behind a SBC 350 go with the 700R4.It can the power of the 350 better than the 200.Both can be beefed up to handle loads of power and tourque.Highly modified 200R4 were put in Buick Grand Nationals so you know they can handle some power when modified.
The 700R4 (in stock form) uses a signal from a computer to lockup the tourque converter but there are plenty of after market conversions wiring kits that give the driver the ability to lock-up the T/C. Here are an example of the wiring kits. HERE OR HERE OR HERE ANOTHER ONE
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71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE |
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#3 |
hmm...
Join Date: Jan 2004
Location: Culver, Indiana
Posts: 1,631
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the 200R4 uses the computer controlled lockup as well. I'd go with the 200R4, even if it DID cost a bit more. First, you get a steeper OD gear (.67 vs. .70 in the 700R4), and second, the gear ratios are more evenly spaced.
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1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR. |
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#4 |
Registered User
Join Date: May 2002
Location: Gainesville, Georgia
Posts: 704
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I'm planning on putting a 200 in my '68 el Camino. It has a mild 327 (300hp or so) and the experts say that the 200 is good in stock form for 300-350hp. In addition to the gear advantages already mentioned, the 200's case is approximately the same size as a TH350 short tail and uses the same yoke, so you can use the same driveshaft. Heads up when you go looking, because the 200 comes in chevy patterns and BOP patterns.
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We made Oklahoma a little after 3, Randy & his brother Bob & my old GMC... |
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#5 |
Registered User
Join Date: May 2000
Location: Storm Lake, Ia
Posts: 1,449
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What vehicles would a person check in at a salvage yard to find a 2004r with chevy pattern and old enough to work with our speedos?
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