Hello there guest and Welcome to The #1 Classic Mustang forum!
To gain full access you must Register. Registration is free and it takes only a few moments to complete.
Already a member? Login here then!





image hosting services


advised me to go that route as he has one in his race car and likes it. I have to say I think it is probably the best "posi" unit you can put in a rearend. I had mine set up at Quickperformance.com (they are in Ames, IA) and can't say enough good things about them. Hope this helps.All T5's are not created equal. Thanks for the reminder, Ken. Yours likely has the dreaded 3.35 1st gear. Standard on 90's mustangs. I have a better 2.95 1st in mine. I'd agree if you have one of those trans a lower numerical gear would be wise but in fifth (overdrive) you can easily run a 3.80...I'm doing it!I have a 3.50 behind the T5 and it seems to be a great combo. First gear is almost unusable, so I can’t imagine how it would feel with a 4.11 or something that deep. I need to shift to second before I clear the crosswalks!
I could see going as far as 3.75 but no further to have a comfortable rpm at elevated highway speeds.
