Will a 4.10, 4.30 or 4.56 rear end gear fit in the stock rear end of our cars? I had a 3.73 and the car shut off at 112 with a dif. gear will I be able to run a 1/4 mile w/o shutting off?
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Will a 4.10, 4.30 or 4.56 rear end gear fit in the stock rear end of our cars? I had a 3.73 and the car shut off at 112 with a dif. gear will I be able to run a 1/4 mile w/o shutting off?thanks zack
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no the car didnt shut off in the 1/4 but i am afraid that the car will shut off at like 80 if i run 4.56 gears. I havent heard of anyone with a gear that low in their mark. will the gear fit in the rear end is what i am wondering.
thanks
zack
I know there has been Mark VIIIs with 4.30s and I'm pretty sure a couple with 4.56s. I don't recall, but either at 4.30 or 4.56 you have to modify the differential by using a notched cross-shaft to clear the gear teeth.
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You need a chip to have it shift properly and not "shut off" with gears.
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When I installed 4.10s in my '93, I had a chip but didn't immediately change the speedo gear. I'm not 100% positive, but for the short time it had the improper speedo gear, I don't think it shifted properly.