OK, so the 4.90 diff gears come from what years monteros montero sports??? eventually, I need to upgrade my 97 SR from 4.272 gears to 4.90 gears. Do you think going from 4.272 gears to 4.6 gears is a waste or will it make a marked improvement? I plan to put 4.6 gears in my LS for towing and 4.90 gears in my SR for wheeling. Both have 4.272 gears now. Opinions?


97 Montero SR w/Mitsu Adj Shocks & Rear Diff Lock ARB Front Diff Lock 4.9 Ring/Pinion 3.15 transfer box 43:1 crawl ratio 2" suspen lift 2" body lift 2" Gas Tank Lift 35x12.5 MTRs 15x10 Wheels Rock Sliderz ARB front bumper w/12k winch Custom rear bumper