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Posted by mr_manny on 4/12/2004, 10:48 pm, in reply to "Re: 1st FJ, 1st post - looking for improved top end..." 33"x 9.5" tires, w/2-3 suspension lift. I found a rpm calculator which gave the following results: in the final 4spd ratio (1:0) 31X10.50R15LT = 30.5 diameter a 31" tire @ 2500 rpms w/4.11 = 55.21 If these values are correct correct? I think I could live w/58mph @ 2500rpms. Please let me know If I am missing something... thanks again for your input, and long replies are always welcome, manny
69.111.162.102
With sites like this and others FJ40 setups, I have narrowed it down to the following choices:
Land Cruiser 4 speed transmission (`74 & up) coupled with existing transfer case.
Keep existing 4.11 differentials.
33X12.50R15LT = 32.5 diameter
a 33" tire @ 2500 rpms w/4.11 = 58.83
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