Restoration & Modification Projects > Modification Projects
My Black Bitza
metalhead:
My '79 is on the hoist at the moment (rear suspension out), I'd be happy to measure anything you like. Mine is a factory 4 speed. I can measure angles, but we'd need to establish a baseline first (angle of chassis at gearbox crossmember perhaps?) to account for any differences in the angle of the car itself. Or I can measure height from top of crossmember to output shaft on gearbox? Or whatever would be most useful, just let me know and I'll measure it tonight after work.
Cheers,
Andrew.
Scott:
Thanks mate. I don't think extra measurements will help though. In the end I'll be limited by how much I can level out the engine and gearbox before it hits the floor.
metalhead:
Fair enough, just figured it might be useful for a baseline. ~3 degrees is normal for engine/gearbox and diff angle in my (non-corvette) experience, I was intrigued by the post above regarding diff angle being 0.
bfit:
--- Quote from: metalhead on October 13, 2015, 02:41:07 PM ---Fair enough, just figured it might be useful for a baseline. ~3 degrees is normal for engine/gearbox and diff angle in my (non-corvette) experience, I was intrigued by the post above regarding diff angle being 0.
--- End quote ---
hi Metal
I have 4 c3`s and all the diffs are the same angle, I am keen to hear form anyone who find theirs is different .
logic says the angles trans and diff should be congruent to allow the universals to work correctly and keep vibrations to a minimum.
At worst the two should be with in 1 deg of drive and driven.
I wonder what influence there is in the fact that engine sits in the frame at an angle.
interesting field mechanics, there is always something different to contemplate.
Id like to hear a good explanation or do I just have 4 cars that are wrong in this department
Why is it so ( is the question )
Bfit
metalhead:
Yeh, interesting. We maybe shouldn't clog Scotts thread with discussion on it, but I might measure mine when I put the rear end back in just for curiosity sake. I agree that you normally want them at the same (or very close) angle, normally ~3 degrees, and that's what I've worked on when fabbing mounts and swapping boxes and rear ends in the past.
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