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I'm swapping a 700r4 to a turbo 350 in 89 rs

Old 08-28-2009, 01:50 PM
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I'm swapping a 700r4 to a turbo 350 in 89 rs

is there anything special that i needa do, to swap a turbo 350 in the old place of the 700r. is there anything special that i needa do. its got a carb motor in it alot of the wiring harness has been cut b4 i got the car i thought i had a turbo 350 in it,i took it out it was a 700r b/c it wudnt go into o/d.
Old 08-28-2009, 02:25 PM
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Car: 83 Trans Am / 96 Jeep XJ
Engine: 355 / 4.0 I6
Transmission: TH350 / Auto
Axle/Gears: 3.23 10-bolt / 4wd
Re: I'm swapping a 700r4 to a turbo 350 in 89 rs

Your going to need to get a new transmission crossmember, that is designed for a TH-350 transmission. The 350 doesnt have any mounting points for the factory torque arm to mount to, so the new x-member has to have something for that. Try BMR fabrication, Im not sure if your factory shifter will work? Also- You may need a new driveshaft, depending on whether or not you have a short tail, or a long tail th-350.

http://www.bmrfabrication.com/F3-chassis.htm

Hope this helps!

Heres what the crossmember looks like:


Last edited by bradley23150; 08-28-2009 at 02:28 PM.
Old 08-29-2009, 07:24 AM
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Re: I'm swapping a 700r4 to a turbo 350 in 89 rs

thanks bradley for the input im gonna be putting a short shaft turbo 350 in it, i am gonna try to keep the drive shaft the stock one from the 700r4
Old 08-31-2009, 07:03 PM
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Car: 1986 Camaro
Engine: 436" SBC
Transmission: TH350, 8" Converter
Axle/Gears: S60 with 4:11 and Locker
Re: I'm swapping a 700r4 to a turbo 350 in 89 rs

b&m makes a bracket that bolts to the tail shaft for the torque arm. it's like $90.00. i have one somewhere.
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