Ok out with the old in with the new...
Whats the lowest u can go on a d44?
Ive got an auto, 400 turbo tranny and d20 tcase, both failry high geared..
so..
whats the lowest gears with those in mind to goto if going to drive on road?
And then if just will trailer it..

now for lockers..
rear- spool? detroit? arb? ox?
front- arb or ox?

while im at it should i replace or upgrade my axle shafts and u joint? never broke a single one yet..

btw if it helps, 78 cj7, soa, 350 chevy, 400 turbo,d20, 36" tsls
any input would be greatful..

trail rig, front ARB, rear spool or ARB

street front and rear ARB

ok but what bout gearing?

Spool rear, detroit front.
Standard rotation D44 goes down to 5.89, reverse cut goes down to 5.13, possibly 5.38, cant remember.

If you have the cash, buy some warns & CTM's

I run 5.38's in standard rotation D44's and 36 Tsl's on a 4 banger. Runs great.

I'm running 5.38 in my Dana 44 front with an OX, my 9" rear has a spool and I love it, I still drive on the street once in a while with 35" MT/R's, a SM420, and a 4 cyl, no problem, but highway RPM would be nasty with a V8. I went low pinion on the front because I wanted 5.38's, but now they are offering them for reverse cut, so I may go high pinion on my next custom width Dana 44.

with the set-up you have I wouldnt go lower then 4.88's. The torque converter and horse power are in your favor. Plus you will be able to get down the highway without the engine reving at 4k.
I dont know what your gear ratio is in your t400 or your 20 but final with an auto works real well between 45-55:1. I am 55:1 and it kicks ass, Im running TF999 (with lock-up torque converter) 4:1 kit and 4.88's. I have 36's and at 3K rpm not using the 4th gear I am only doing 60 miles an hour.

I have a detroit in my rear 9", with an auto and very rarely does it disingage now. The spool for a mostly street rig IMO sucks. You will wear tires out real quickly.

I would have a ARB front so you can turn it on and off only when you need it. If you have dual ARB's and your air source takes a crap you have nothing. At least with a rear locker you can get out of most situations.

my .02 cents worth

BlueYJ

Even if the air goes away so what IMO. I only turn them on a few times a weekend. If you are going to go through the trouble of installing the compressor for the front I say hook them both up and have the best of both worlds. An ARB is only $100 more than a Detroit but I prefer a spool over the Detroit at least for the rear of course.
With the 400 I would run nothing taller than 4.88's and would probably run 4.56's if you are running 35's

I'd have to agree w/ 66 on all fronts there! I'd have to say w/ the lower gear though you'll always end up w/ bigger meats somehow...:flipoff2:

go 4.88 something selectable up front and spool the rear.

I'm running 4.27 gears with Ox lockers front and rear. You can get away with a little lower numeric ratio R&P if you've got a V-8 under the hood. Low tranny and transfer case gears can take care of off-road gearing and you still can get some decent mileage on-road in case you wrapped your other car around a tree last winter and have to drive the Heep to work every day (like I did, and do) :flipoff2:

Jake

Originally posted by MOVEASIDE
go 4.88 something selectable up front and spool the rear.

Good to see you can recommend a gear when you have 30" ATs :rolleyes: :flipoff2:

I had 4.88s with 36's and an auto tranny. It did well but with your power plant I'd say 4.56 would be sufficient.

I have 4.89's with detroits front and rear in my 44's with 38's...with my 360 it does really good for a full size...but they didn't take the stress (I knew they wouldn't in the long run) and I tweaked the housings.

I am upgrading to 14FF and D60 in a few months...

the 4.89 is a good gear even with only 9 teeth on the pinion.... they do heat up pretty good though...

go with 4.89's

Thanks for ya'll input, looks like once i gear and lock it, i wont drive much on the road anyways.. so prolly go spool rear, arb up front..
and as for gears, still debating, 4.88 or 5.13... being that the 400 turbo's first gears isnt too low and the d20 t case gears suck (might go tera low)...

we will see though.. thanks all..