HELP needed with my backdraft cobra!!!

[427fast]

I drag race my backdraft cobra and I have a serious problem with the rear differential getting loose and breaking the grade 8 lower bolt that holds it in place. When it breaks we have to use a point chisel to remove the broke bolt. I am looking at the solid mounts that backdraft sells and going to switch them out to solid. I am afraid to use lock tite cause then I won't be able to remove the broke bolt. I have been tighting the bolts every time I race but it is not enough. Please I need some advise here. Thank you

[Mark Brye]

If my memory is correct the older cars had a 12mm bolt. They later went to a 14mm bolt. Do you know which you have?

Seems like a couple years ago I saw someone post about an upgrade for this. Was a kit that was used on the E36's that worked on our cars. Will see if I can find it.

[427fast]

I have he later 14 mm bolt My production number is #990

[Mark Brye]

Installed differential support kit...great results!

Try the link above.

[427fast]

Mine already has the 14 mm bolt. Will this kit help me more?

[Mark Brye]

The OP seemed to think it helped. I have never seen the kit in person or have any experience with it. Just thought I would post it as an option. I think there were a couple other people that used this. Try doing in search in the Backdraft section, I think this subject has been talked about a couple times.

[427fast]

Thank you

[Cashburn]

You need solid diff and cage mounts if you are dragging. What engine do you have? What tires? Sometimes a softer bolt is better as they are less brittle.

[427fast]

Small block 427 and 335 wide tires

[427fast]

Is the solid Differential mounts what you are pertaining to? Backdraft part. Backdraft Parts - Solid Diff Mountings - Performance Suspension - Suspension - Products

[427fast]

And is the cage you are talking about is it like this one Active Autowerke BMW Differential Support Bracket E36

[Cashburn]

Originally Posted by 427fast

Is the solid Differential mounts what you are pertaining to? Backdraft part. Backdraft Parts - Solid Diff Mountings - Performance Suspension - Suspension - Products

Yes on these.

[Cashburn]

Originally Posted by 427fast

And is the cage you are talking about is it like this one Active Autowerke BMW Differential Support Bracket E36

No on this. I am referring to these:

Rear Subframe Bushings/Mount Set - Turner Solid Race - E36, E36 M3 - Turner Motorsport

Or

Backdraft Parts - Solid Sub frame bushings - Performance Suspension - Suspension - Products