Gearing, for my 3rd Gen
 

I know, according to my VIN my 2002 4Runner has 4:10 gears. I have since Lifted it added wheel spacers and 285/75/16's on stock limited wheels. I get about 17mgp with AT's and 15-16ish with MT's. I'm currently at 127k and will reach 200k in 1.5 years. I had intended to purchase a pre-owned 3.4 mill and add headers, URD SC kit, and a TRD SC, among other odds and ends. After researching the turnkey cost I started to think a bit. HMMMM I though instead of a SC I could re-gear both ends and ARB lock the rear, then when I need a motor just replace what I have no SC. So the question is which gears to go with? I never plan on anything bigger than the 285's seeing as how these seem perfect for the application. Would I need 4:88's or 5:29's? I do 80% highway for work and play and the other 20% offroad. I know the Expedition West Taco is running 5:29's. And most other Taco's are equipped with 4:30's. Though the ARB can only be geared with certain ratios.


Aaron

If you don't plan on going bigger than 33's, 4.56's <-optimized for on-road mileage and capabilities. 4.88's and 33's will give you too much RPMs on the highway IMO.

So hmmm can Arb's be fitted with 4:56's, if so can the front be fitted this way?


Aaron

Andy Bamachem has 4.56s with dual arbs i think.

I didn't know that ARB's were gear specific. I think as long as you don't have an overly small gear ratio, where the ring is small, then you're okay.

i have 4.88's and dual ARB's with 285's. I too was a little skeptical on the 4.88's at first but went for it anyway. I love it. Truck does not rev too high during freeway driving at all. I pull about 2600 rpm at 75mph. I wouldnt want it any other way. Right On.

forget the gears, get the SC and keep the 4.10's. You will have plenty of power then.

Ditto......

4.10's are much stronger and will hold up better with the SC.