View Single Post
Old 08-25-2008, 09:20 PM
Mendocino's Avatar
Mendocino Mendocino is offline
Hard Core 4+
Join Date: Sep 2005
Location: North Side
Posts: 1,721
Default FJ40 Ring & Pinion gearing question

I am considering changing my 4.10 R&Ps for 4.88. I am currently running 35s and my 700R4 tranny has an underdriven (.7 to 1) 4th gear. With the current set up I can do ~75 on the highway at about 2200 RPM. I will eventually go with larger tires, but want to know what I can expect to loose in top speed with the 4.88s. I would appreciate some comments from those of you with 4.88s and similar size tires.

What gears are preferred? Precision or Yukon, or ? Where should I purchase the gears?

03 UZJ100 (2.5" OME/Slee suspension), LEDs, cross drilled and slotted rotors by PowerStop, and some other goodies.
75 FJ40; 355 HP/405 FP torque/ fuel injected ZZ4; 700R4 tranny, Orion, ARBs F&R, armored, winch, ...; and now weighing in at 4370 lbs.
Reply With Quote