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

Crossmember bolt size

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Old Dec 15, 2010 | 07:05 AM
  #1  
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Transmission: Stage 2 700R4, LS1 driveshaft
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Crossmember bolt size

Hey guys,

I'm installing a UMI 700-R4 trans cross member. As I was removing the factory cross member, all four factory bolts snapped. Guess I'm gonna have to drill them all out.

The UMI cross member did not come with any bolts.

Can anyone tell me what size the trans cross member bolts are?



Thanks
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Old Dec 15, 2010 | 07:28 AM
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Re: Crossmember bolt size

Stock size is 10mm x whatever the "std" (not "fine") thread pitch is for that dia (1.5mm I think) x about 40mm long.
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Old Dec 15, 2010 | 08:24 AM
  #3  
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Crossmember bolt size

Originally Posted by The Project
The UMI cross member did not come with any bolts. Can anyone tell me what size the trans cross member bolts are?
M10 x 1.5 x 32. You might check with UMI, because my cross member arrived with new bolts/washers. You may remember the following review:

https://www.thirdgen.org/forums/afte...-t5-cross.html

JamesC

Last edited by JamesC; Dec 15, 2010 at 08:29 AM.
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Old Dec 15, 2010 | 01:47 PM
  #4  
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From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: Crossmember bolt size

Originally Posted by JamesC
M10 x 1.5 x 32. You might check with UMI, because my cross member arrived with new bolts/washers. You may remember the following review:

https://www.thirdgen.org/forums/afte...-t5-cross.html

JamesC
I book marked your review and I have an ES poly trans mount to install as well.

I sent two emails to UMI and heard nothing. I left them a message on their facebook page as well.
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Old Dec 15, 2010 | 04:29 PM
  #5  
//<86TA>\\'s Avatar
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Re: Crossmember bolt size

is this just the crossmember, or a crossmember mounted torque arm? the crossmember mounted torque arm i bought years ago came with 6 bolts and washers.
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Old Dec 15, 2010 | 06:01 PM
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Crossmember bolt size

Originally Posted by The Project
I'm installing a UMI 700-R4 trans cross member. As I was removing the factory cross member, all four factory bolts snapped. Guess I'm gonna have to drill them all out.

The UMI cross member did not come with any bolts.
Note what the following advert says about new hardware:

http://www.umiperformance.com/catalo...roducts_id=139

JamesC
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Old Dec 16, 2010 | 07:01 AM
  #7  
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From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: Crossmember bolt size

Originally Posted by //<86TA>\\
is this just the crossmember, or a crossmember mounted torque arm? the crossmember mounted torque arm i bought years ago came with 6 bolts and washers.
It was just the crossmember (part 2221).

Originally Posted by JamesC
Note what the following advert says about new hardware:

http://www.umiperformance.com/catalo...roducts_id=139

JamesC
Mine didn't come with any hardware. As I stated previously, I sent them two emails and heard nothing....kinda disappointing. I have UMI's sfc, panhard rod and wonderbar and never had an issue before this.
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Old Dec 16, 2010 | 07:10 AM
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Crossmember bolt size

Originally Posted by The Project
It was just the crossmember (part 2221).
Mine didn't come with any hardware. As I stated previously, I sent them two emails and heard nothing....kinda disappointing. I have UMI's sfc, panhard rod and wonderbar and never had an issue before this.
I emailed Ryan directly with questions and he responded immediately.

JamesC
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