Gearing options for Ford / Jeep

Rock_Crusher · Sep 28, 2006

Hi, I'm looking for info on;

Gearing Match Options

I want to use a 1996+ ford explorer 8.8 rear end in my jeep along w/ the stock dana 30 in front. currently i have 3.07's for R&P gearing now, I'd like to run upto 35in tires... powered by the stock jeep inline 6cyl.

what gearing options do i have to match the F/R ends & choice of lockers?

=================

thanks for any answers ahead of time.

GT TJ · Sep 28, 2006

automatic or 5 speed ?

NotMatt · Sep 28, 2006

4.88's - That's as low as you can go in the D30. 4.88's and 35's will work pretty good.

Jaydog · Sep 28, 2006

With 35's 4:56's will get you back to stock ratios. Then it all depends on what you want to do.

Pony-boy · Sep 28, 2006

Both are great advise.
I would go with the 4.56's if it were me.

The lowest an 8.8 will go is 5.13 anyway

And I would either go ARB or Electric for lockers......

Rock_Crusher · Sep 28, 2006

GT TJ said:
automatic or 5 speed ?

5speed - :haha: sorry bout that.

Rock_Crusher · Sep 28, 2006

NotMatt said:
4.88's - That's as low as you can go in the D30. 4.88's and 35's will work pretty good.

anyone know what model exploder's came with from the factory?

i heard 410's? 4cyl jeeps also had 410's.... kinda high w/ 35's though, but i do have the 6cyl... and a transfercase w/ lower gearing might help?

GT TJ · Sep 28, 2006

Rock_Crusher said:
5speed - :haha: sorry bout that.

With that you could go either way :;

NotMatt · Sep 28, 2006

4.88's... there's no other choices if you want to run 35's. TRUST ME. :;

xjoffroad · Sep 28, 2006

NotMatt said:
4.88's... there's no other choices if you want to run 35's. TRUST ME. :;

x2 i had 4.56 in my cherokee with 35 mtr and it sucked. its night and day with the 4.88

Totalled · Sep 29, 2006

Exploders came with 3.27-3.55-3.73-4.10 open and L/S. 3.73 L/S is the most common in this area. the 4.10 axles are almost exclusivly found in the 95-00 explorers. If you are goin to reagear and add a carrier style locker... don't worry about ratio and just get the cheapest one you can find.

My buddy has 5.13s in his 8.8 with an ected e-locker and it works real well. It was a little much gear with the 5 speed, and is perfect with the auto that's in there now. ( in a BII )

Bunk1 · Sep 29, 2006

Go 4.88's right off the bat.

junkyard jim · Oct 2, 2006

4.10 if you are running Renix (with some power mods) or 4.56/4.88 with HO. The Renix rig's cam is more for bottom end. In order to doa way with the EGR valve, Mopar retimed the cam 5 degrees or so retarded. (Cuts the NOx, which when too thick makes Knocks and pings) That pushed the power band into higher RPM too.
I run my Renix Comanche D35 3.73 gears (originally 3.07 geared) with 5 speed and 33" tires and mine is great for road driving (4:1 low range will cure the offroad) I tried 4.10s and power/speed went into the shitter for road driving. It could also be the curves for the computer are set for more bottom end in the 3.07 rigs as well.

Cascade_Crawler · Oct 3, 2006

Ill be running 4.56's in my YJ with 35s and a 4.0, but my axles are already built, otherwise I would go with 4.88's. I'm actually thinking about a 4:1 kit...