Trans Crossmember bolt size?
Thread Starter
Junior Member
Joined: Aug 2003
Posts: 56
Likes: 0
From: New Boston, MI
Car: 2004 GTP CompG
Engine: L32 SC
Trans Crossmember bolt size?
Anyone know the bolt size for the crossmember bolts? The previous owner had broken one off (used a nice 3/8 sheet metal screw right next to it..like that would do anything...)
I need to drill and tap it but anyone know the size before I crawl under there? Is there a better alternative? Helicoil/JB Weld..they look like 6 strength bolts so they must take some torque....
I need to drill and tap it but anyone know the size before I crawl under there? Is there a better alternative? Helicoil/JB Weld..they look like 6 strength bolts so they must take some torque....
Senior Member
Joined: Dec 1999
Posts: 954
Likes: 1
From: Annandale, VA
Car: 1991 Formula Firebird
Engine: 2001 LS1 Modded
Transmission: 2001 4L60E Yank SS3600 TC
Toruqe Specs Please
I am replacing my tail mount this weekend. Do anyone have the torque specs for the crossmember to frame, mount to trans, and mount to crossmember?
Supreme Member
Joined: Aug 2002
Posts: 1,824
Likes: 0
From: Mesa, AZ: Transplanted from Chicago, IL
I had the same thing happen, broke 2 of em off. One came out with easy outs and the torch, the other had to be completely drilled. If you have to completely drill it out you are going to most likely have to step up to the next largest size bolt to get good thread bite.
Supreme Member
iTrader: (1)
Joined: Feb 2000
Posts: 7,964
Likes: 4
From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
two of my crossmember bolts were stripped and my friend tapped all 4 holes for new bolts so that they were all the same bolt and thread.
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