I have been running that case in the 489 style, 4.30 gears, and 35 spline set up for 3 or 4 years. Ring and pinion life sucks for me at about 80 passes.
My Dart is about 3300lbs, normally 1.38-1.42 60' times
A 9" is going under the car soon. Save your money Dom
Have you ever tried a 4.10 gear?
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Yes, but it has been a while. They seemed to last a little better, but I can't put a number on it (combo was a little different). Car is quicker and more consistent with 4.30s.
I pull them before they blow up (usually), they start talking on the return road. I will pull them and find cracked teeth. Yukon, Richmond, US gear have all failed, shock proof gear lube seams to help some. I am done feeding it. [/quote]
My gears are Richmond and have been "talking" since day one so maybe you`re just a "bit" over reactive in changing em out since they really didn`t fail did they. So to say they last this many passes isn`t really the case is it..........JBody, I used to live at LACR and was "racing" on a monthly basis w/THESE weak ass gears so whatever on the "once a year" deal.............too funny.......
