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

T56 crossmember

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Old Jun 25, 2018 | 10:40 AM
  #1  
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From: newark, De
Car: 85 trans am
Engine: 383 stroker
Transmission: 5 speed
Axle/Gears: 9 bolt rear 3:70
T56 crossmember

Can some identify this crossmember? I bought it a while back for a t56 install but im wondering if its the wrong one. The bolt holes for trans mount is throwing me off as my trans mount has 1 stud not 2 and previous owner definitely used both holes on crossmember.
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Old Jun 25, 2018 | 11:02 AM
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: T56 crossmember

I think it is homemade Maybe a Spohn.

Last edited by QwkTrip; Jun 25, 2018 at 11:07 AM.
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Old Jun 25, 2018 | 11:11 AM
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From: newark, De
Car: 85 trans am
Engine: 383 stroker
Transmission: 5 speed
Axle/Gears: 9 bolt rear 3:70
Re: T56 crossmember

It's supposed to be spohn and came with torque arm as well. I'm hoping it's for the 4th gen t56 though.
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Old Jun 25, 2018 | 05:01 PM
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Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: T56 crossmember

Most aftermarket transmission mounts have 3 holes, so they can be used with single or dual bolt setups.

Biggest problem with that crossmember is that it will hang down a mile.
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Old Jun 25, 2018 | 08:24 PM
  #5  
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From: newark, De
Car: 85 trans am
Engine: 383 stroker
Transmission: 5 speed
Axle/Gears: 9 bolt rear 3:70
Re: T56 crossmember

Can I get a mount that has 2 studs for the swap
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Old Jun 27, 2018 | 05:46 PM
  #6  
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Re: T56 crossmember

Looks just like my Spohn.

You could get either a drill bit and add a slot in the middle, or buy a mount for a Turbo 350 or 400, or a Muncie or T-10 4-speed. Any car that came with any of them. Be romantic... aim high... get one for a 69 Chevelle SS396 4-speed. Won't have studs though; it uses 2 bolts instead of stud & nut.
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Old Oct 14, 2018 | 12:36 PM
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From: newark, De
Car: 85 trans am
Engine: 383 stroker
Transmission: 5 speed
Axle/Gears: 9 bolt rear 3:70
Re: T56 crossmember


I dont believe I was sold the right crossmember for my swap. I tried to line up different holes but the only ones that line up dont match where the trans mount is. Any ideas anyone?
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Old Oct 14, 2018 | 12:40 PM
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Re: T56 crossmember

Nope, looks like it's for something else... exactly the same except different... 4L80E maybe? What did Steve Spohn have to say when you asked him?
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Old Oct 14, 2018 | 01:08 PM
  #9  
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From: newark, De
Car: 85 trans am
Engine: 383 stroker
Transmission: 5 speed
Axle/Gears: 9 bolt rear 3:70
Re: T56 crossmember

I didn't ask him. I was told it was for t56 n came with torque arm too but I dont remember who I got it from on here. I imagine i won't be able to use torque arm either when i get the right cross member
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Old Oct 15, 2018 | 01:30 AM
  #10  
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Re: T56 crossmember

I didn't ask him.
Maybe you should.
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Old Oct 15, 2018 | 02:09 PM
  #11  
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From: newark, De
Car: 85 trans am
Engine: 383 stroker
Transmission: 5 speed
Axle/Gears: 9 bolt rear 3:70
Re: T56 crossmember

The riddle has been solved. Its for a Borg Warner t56.
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