To those breaking rear diffs
Thread Starter
Team Owner
Joined: Mar 2001
Posts: 30,847
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Originally Posted by byebyeL98
My engineering knowledge is quite limited, so please bear with me... Assuming we are able to come up with solid mounting point(s) for some type of "bracing bar", is there any reason why the center section needs to move at all?The reason I am asking is: I just had a roll bar welded into my '87. Would it be workable to run a solid bracing bar from the center section (possibly around the snout area where the C beam bolts to it), through the rear compartment "floor", to the lower rear, horizontal portion of the roll bar?
Or am I way off base?
For those who have had a diff fail, do you still have the parts?
Could you post some pics?
I know one of the forum vendors, if we can come up with a brace/cradle, he's all set to market it.
Are they're any 10sec C4's in the MA area?
My car's engine is still stock, and besides it's still in storage in SoCal.
The vendor's policy is, if we use your car to develope the part, your's is free. I've already got a set of C4 seat rails this way.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
I think a trany cross member atached to the frame and the C-beam would help a great deal. If the trany and motor twist is limited or removed then the only twist to he diff would be the flex in the C-beam.
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
I definitely do NOT have a 10 second car. I'd be thrilled to break into the 11s this year. Too bad I'm not in Mass. (although I'm not too far) - I'd be happy to loan my car for a free brace!
I was just looking underneath the car today - there is SOME room to work under there, and a brace would come up through the body to my roll bar nicely
(Time for me to learn how to weld!!!!!!!!)
I was just looking underneath the car today - there is SOME room to work under there, and a brace would come up through the body to my roll bar nicely
(Time for me to learn how to weld!!!!!!!!)
Thread Starter
Team Owner
Joined: Mar 2001
Posts: 30,847
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Originally Posted by FD2BLK
I think a trany cross member atached to the frame and the C-beam would help a great deal. If the trany and motor twist is limited or removed then the only twist to he diff would be the flex in the C-beam.
Thread Starter
Team Owner
Joined: Mar 2001
Posts: 30,847
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
I ran the pics buy the forum vendor, big thanks for the email BTW.
Bad news
He doesn't seem to think any kind of external brace will do it.
That quick change setup is looking better, those aren't that expensive btw.
Bad news
He doesn't seem to think any kind of external brace will do it. That quick change setup is looking better, those aren't that expensive btw.
Thread Starter
Team Owner
Joined: Mar 2001
Posts: 30,847
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Originally Posted by CentralCoaster
Who's this and why does his opinion matter beyond than how sellable it'd be?
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