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What diff ratio for 4.8 auto and 35's
Posted: Thu Dec 18, 2008 7:06 pm
by tuf045
would like people thoughts on what diff ratio to suit 315/75/16 inch tyres on a 4.8 patrol auto. My thoughts are 4.11 but I am wondering if this will be to much? any one done it?
Re: What diff ratio for 4.8 auto and 35's
Posted: Thu Dec 18, 2008 10:06 pm
by heathhoppy
tuf045 wrote:would like people thoughts on what diff ratio to suit 315/75/16 inch tyres on a 4.8 patrol auto. My thoughts are 4.11 but I am wondering if this will be to much? any one done it?
hi mate 4.1 s is the go, mate of mine has done it,its just like a gq with 4.2 and 35' use 4.6 works out about the same and plus 4.1's are cheap and your 3.5's are worth coin for the v8 diesel conversion's
Posted: Fri Dec 19, 2008 1:18 am
by jessie928
4.3's woudl be purfect for the auto and 35's
jes
Posted: Fri Dec 19, 2008 10:33 am
by turbo gu
Don't the 4.8's have 3.5:1 diff gears? If so 3.9s would be better.
4.6s with 35's is too much. 4.3 are ideal for anything with 3.9 diff gears standard and 35's
Posted: Fri Dec 19, 2008 10:41 am
by jessie928
auto's rev a little low at cruise compared to manuals.
check out what your 5 speed cruises at, and then check out the auto.
when you go up a extra ratio in teh auto, it holds overdrive better and has more torque when cruising and loaded up.
Jes
Posted: Fri Dec 19, 2008 10:57 am
by tuf045
Well i will try it and see whether i like it. worse case swap centres for 3.9 one's. Thanks for the input. Will let you's know what happens.
Posted: Fri Dec 19, 2008 11:11 am
by jessie928
tuf045 wrote:Well i will try it and see whether i like it. worse case swap centres for 3.9 one's. Thanks for the input. Will let you's know what happens.
yeah its an easy swap to just try the rear centre, if you like it then do the front.
JEs