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Transmissions and Drivetrain Need help with your trans? Problems with your axle?

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Old 03-12-2002, 06:40 PM   #1
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Th350 and 3.73's?

I have 2.73's in my '82 Camaro and I want to go to 3.73's. Is this wise? The car only gets driven in town and I only built it for light to light stuff. Also right now I have a TH200 tranny, I am swapping in a built TH350 from a '79 T/A but I need to know if these tranny's are the same length or not and what other parts I may have to have made to make the swap work. My car's description is on the link provided(if it worked)

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Old 03-12-2002, 06:44 PM   #2
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer

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A th-350 is a bolt in for the th-200c they have the same dimensios. The only thing you will need i a torque arm bracket from B&M or Hurst. I don't even have a bracket and did some mods and fabrication on mine to make it really stiff.
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Old 03-13-2002, 08:15 AM   #3
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Car: 82 camaro SC
Engine: 350
Transmission: 700r4

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Yep, it will fit right in if it's a 6 inch tailshaft Chevy bolt pattern. A 79 T/A will most likely have a 400 Pontiac engine(or other pontiac engine). If that's the case, make sure the th350 has a dual bolt pattern. The BOP pattern is different than Chevy and won't bolt up without an adapter plate. Then check the tailshaft length.
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Old 03-26-2002, 11:02 AM   #4
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Location: Alberta, Canada
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Car: 1982 Z28/1987 IROC
Engine: Vortec 350/ZZ3
Transmission: 7004r/7004r

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I had 3.73 behind my th200 for awhile, its fine around town, but highway driving sucks, I was revving at over 3grand to go 100km.

the TH350 would definatly be stronger than a 700r though especially a built one.
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Old 03-26-2002, 11:02 AM
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