QC rear end ?

[grt74]

I can count my failures over 22 years with 9 inch gears on two fingers.

sounds like you have it figured out

[grt74]

Stock car was that a Q/C or a 9" ford?Grt74 also said he is using 85-140.While I have no problems using 90 wieght in my Q/C ,On the 9" switching to 140 from tractor supply gave better life that the best 90 that I could buy.

and thank you,i know I'm not the only one

[lindsey97]

Agreed grt74, exactly my point. Thanks!