T/A Style Differential cover or ??

[curtis reed]

I put the support cover and the Mark Williams caps on my 12 bolt at the same time. Didn't do studs just the cap screws and so far has extended my gear life from 250-270 run avg to 473 right now on this set. I just run street gears and my car is really light but it still gives a comparison. Same person set up the last 3 gear sets for me and he is super meticulous and consistent.



Low to mid 1.20s in 60' both footbraking and leaving on the transbrake index racing.



Curtis

[1320racer]

I used the T/A girdle cover on the 12 bolt in my Chevelle for years. That said, I didn't typically get more than 200 passes on the R&P

[curtis reed]

Originally Posted by 1320racer

I used the T/A girdle cover on the 12 bolt in my Chevelle for years. That said, I didn't typically get more than 200 passes on the R&P

That thing was a fast heavy tank though.

[1320racer]

it was, 3880 lbs. going down the track

[SSGN]

Originally Posted by 1320racer

I used the T/A girdle cover on the 12 bolt in my Chevelle for years. That said, I didn't typically get more than 200 passes on the R&P

Did you use the Toms/Mark Williams billet caps and cap screws??

Thanks

[1320racer]

I did not