Adding a lift kit and bigger tires, will my gears be ok?

Question

I have a 99 Chevy Z-71 with the 5.3L V8, Im wanting to add a 6 inch lift with some 35 inch tires. I have 3.73 gears in my truck, is that enough gear to handle that much tire? I have 285/75's on the truck now, a 285/75 is the same as a 33 inch tire. The truck has no problem with them. Im hopeing everything will be fine. I will change the gears if I have to, but I REALLY REALLY DONT WANT TO. What do yall think? Do I need a lower gear, or a shorter tire? THanks fot the help... Joe

Answer 1

Gears will be fine, however if your putting on tires that big here are a few things you might as well replace because the stock stuff just ain't gonna cut it. Wheel studs, wheel bearings, axle shafts(if u will be doing a lot of off roading) u-joints front and rear. The good news is after amrket versions of these parts shouls run you no more than 200-300 bucks. Happy wheelin!

Answer 2

i own a shop,and you wont have to change the gear ratio in it ,a 3.73 will handle those tires fairly good,you,ll see a little difference in it ,but not enough to hurt it any,the one thing it is going to throw off a little is the speedometer,you,ll see a change in this,other than that i don't think that there will be that much difference it it,good luck with it,i hope this help,s.

Answer 3

it has plenty of power to rotate the 35's, the question is: do you want to spend the money to get your speerometer re-calibrated? the bigger tires will cause you to go faster than what your speedometer says, so youre going to have to get that checked out, or deal with the tickets from the po-po

Answer 4

i don't honestly know if your gears will be ok or not but i just wanted to say god bless you anyway, i have a 95 z71 and plan on doin the same thing, so, lift that s**t brother and let's go crush some imports!!!

Answer 5

It will throw your speedometer off.