Hey t4r lovers. I'd like a rundown on opinions for my rig set up. I know I've asked a couple questions like this before but after taking some great advice and using my truck first to determine how I use it I believe I have a better idea of my expectations. Just to make notice I'm running a 2004 sr5 4spd 4x4 auto v6, so I do have the 390 gears. There for I've got myself into a pickle when originally I thought I was doing myself a favor. I bent my rear axle housing and replaced it with an 07 fj axle with 390 gears but it has a factory e-locker. The wire harnes from low range offroad is on order. Having the thin ring in the diff is a concern. I've heard horror stories of the weakness of these fj rear diffs.
So this is what I'm thinking. From people's reports the 275/70r17 is much easier on the rig than 285/70r17. I noticed a 1mpg difference going from stock tire size to one size bigger 265-70r17s. The 275s are actually less than one more size up. They are 32.3 and only a 1/4" more wide. The 285s are 32.6 and 3/4" inches more wide. I know what to expect out of mpg differences but my question is what about the strain on the rear diff? Say I'm in a scenario where my I'm flexed out, locked center and rear and I need the momentum.
I'm rolling a 2.5 daystar spacer lift now but I plan to bump her up to 3". I want to run ome 885s with some billies and invest more in my 4link. 2" toytec super flex and the toytec adjustable rear links. The 285/70s are not even a 33 but are the too heavy for the weak ring and pinion?
Another ? Is in regurads to the vsc mod. I may want to in some cases have my runner in 2wd with the rear locker enguaged. I read a lot but it seems I can only find info on this mod for 3rd gens and v8s where the wiring seems to be a little different. Is there any info on my particular model? Mine has two plugs going in to the master cylinder. One has 3 wires and the other has 2. How much stress would the rear diff be under if I was doing donuts with the vsc off and rear locker enguaged in 2wd with 285s vs 275s. Thanks everyone and happy 2016.
So this is what I'm thinking. From people's reports the 275/70r17 is much easier on the rig than 285/70r17. I noticed a 1mpg difference going from stock tire size to one size bigger 265-70r17s. The 275s are actually less than one more size up. They are 32.3 and only a 1/4" more wide. The 285s are 32.6 and 3/4" inches more wide. I know what to expect out of mpg differences but my question is what about the strain on the rear diff? Say I'm in a scenario where my I'm flexed out, locked center and rear and I need the momentum.
I'm rolling a 2.5 daystar spacer lift now but I plan to bump her up to 3". I want to run ome 885s with some billies and invest more in my 4link. 2" toytec super flex and the toytec adjustable rear links. The 285/70s are not even a 33 but are the too heavy for the weak ring and pinion?
Another ? Is in regurads to the vsc mod. I may want to in some cases have my runner in 2wd with the rear locker enguaged. I read a lot but it seems I can only find info on this mod for 3rd gens and v8s where the wiring seems to be a little different. Is there any info on my particular model? Mine has two plugs going in to the master cylinder. One has 3 wires and the other has 2. How much stress would the rear diff be under if I was doing donuts with the vsc off and rear locker enguaged in 2wd with 285s vs 275s. Thanks everyone and happy 2016.