Torque arm cross member
Torque arm cross member
Hey guys. Been a while. So helping my kid with his car. Been doing a little bracket racing. Anyway, looking at gettin a tranny cross member with the torque arm mount in it. To get it off of the tranny. The trans is a th350, the torque arm is the stock one, and, if it matters, the rear is a 9 inch. I'm wondering what one is the best bang for the buck? And which one will work best in our situation? Yes he runs slicks and we plan on upping the power level in the future. Thanks for any advice.
Joined: Jun 2001
Posts: 8,028
Likes: 93
From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
Re: Torque arm cross member
There are tons of solutions, what's best depends on where you plan on going with the car, and the best deal depends on what you find/who's having a sale... My go to is the Jegster TA's. And depending on what 9" with what TA bracket you might have to do some modification to the floor pan (hammering) to get it to clear)
Joined: Aug 2009
Posts: 2,098
Likes: 8
From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: Torque arm cross member
There are tons of solutions, what's best depends on where you plan on going with the car, and the best deal depends on what you find/who's having a sale... My go to is the Jegster TA's. And depending on what 9" with what TA bracket you might have to do some modification to the floor pan (hammering) to get it to clear)
Re: Torque arm cross member
There are tons of solutions, what's best depends on where you plan on going with the car, and the best deal depends on what you find/who's having a sale... My go to is the Jegster TA's. And depending on what 9" with what TA bracket you might have to do some modification to the floor pan (hammering) to get it to clear)
Re: Torque arm cross member
Check out the BlackHeart line from Hooker/Holley. They have specific crossmembers for various swaps including the TH350 (IIRC).
Now that said, most of their latest is LS swap based but in my case, with a Gen 1 SBC, I've used their crossmember for 4L60-4L70/4L80-4L85/TH400/2004R Transmissions. The difference between the engine/transmission mounting planes in an LS compared to a SBC (about 5/8") meant a small tab added to the transmount on the crossmember. A bolt-in deal.
I've also got data from Toddoky (search his user name here on Third Gen) regarding transmission dimensions so you can cypher what might work with minimal fabrication.
Hope that helps.
Now that said, most of their latest is LS swap based but in my case, with a Gen 1 SBC, I've used their crossmember for 4L60-4L70/4L80-4L85/TH400/2004R Transmissions. The difference between the engine/transmission mounting planes in an LS compared to a SBC (about 5/8") meant a small tab added to the transmount on the crossmember. A bolt-in deal.
I've also got data from Toddoky (search his user name here on Third Gen) regarding transmission dimensions so you can cypher what might work with minimal fabrication.
Hope that helps.
Joined: Mar 2004
Posts: 217
Likes: 17
From: Honea Path, SC
Car: 1985 Z28
Engine: 383
Transmission: 700R4
Axle/Gears: 10 bolt/3.73
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Re: Torque arm cross member
My 700 is a little odd in that it has the rear trans mount on the extension housing as opposed being cast into the case itself. This made it almost identical in length to a TH400 and it caused a lot of grief (and a season of no racing) before I sorted it out.
Supreme Member
Joined: Apr 2006
Posts: 1,801
Likes: 21
From: Rochester NY
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: Torque arm cross member
I use this but for a 700r4 with no complaints, TH350 option below
https://www.umiperformance.com/home/...transmissions/
https://www.umiperformance.com/home/...transmissions/
Hey guys. Been a while. So helping my kid with his car. Been doing a little bracket racing. Anyway, looking at gettin a tranny cross member with the torque arm mount in it. To get it off of the tranny. The trans is a th350, the torque arm is the stock one, and, if it matters, the rear is a 9 inch. I'm wondering what one is the best bang for the buck? And which one will work best in our situation? Yes he runs slicks and we plan on upping the power level in the future. Thanks for any advice.
Joined: Mar 2004
Posts: 217
Likes: 17
From: Honea Path, SC
Car: 1985 Z28
Engine: 383
Transmission: 700R4
Axle/Gears: 10 bolt/3.73
Re: Torque arm cross member
What modifications did it entail?
My 700 is a little odd in that it has the rear trans mount on the extension housing as opposed being cast into the case itself. This made it almost identical in length to a TH400 and it caused a lot of grief (and a season of no racing) before I sorted it out.
My 700 is a little odd in that it has the rear trans mount on the extension housing as opposed being cast into the case itself. This made it almost identical in length to a TH400 and it caused a lot of grief (and a season of no racing) before I sorted it out.
https://www.thirdgen.org/forums/exha...ml#post6410684
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