I have read that the reverse cut Dana 60 is pretty much indestructable in "forward motion" I assume that in reverse it is weaker. Now if I wanted to run a Dana 60 on the rear end for rear/all wheel steer wouldn't this esentially be running the axle now in reverse and possibly very bad? Has this been done? I understand new axles and tubes would have to be cut to center the dif but if we are just talking theory and not price, I just want to know if its feasable. Any help or articles on rear steer or this set-up would be greatly appreciated.

I would not run a reverse cut gear set in the rear. The work great on the front, but not so hot in the back. Jeeps and light trucks use reverse cut gears in Toyota HPs and Ford 9" HPs, they are light trucks that MAY not see much street use. IMO, I would not do reverse cut in the rear.

it runs the gears on the coast side instead of the drive side when you either:
(1) run a low pinion up front, or
(2) run a high pinion out back

a lot of people get away with running hp rears, longevity depends on power, tire size, type of wheeling, and driving style. lots of comp buggys run hp rears without issue.

what is your setup/style?

I do not have a setup right now. This summer we are planning a full 2" tube chassis 350 dual turbo Duramax Diesel trans is still up in the air and a modified NP205. I want 2 front dana 60's for the axles but just wanted to know do I use reverse cut on both or just the front?

I do not have a setup right now. This summer we are planning a full 2" tube chassis 350 dual turbo Duramax Diesel trans is still up in the air and a modified NP205. I want 2 front dana 60's for the axles but just wanted to know do I use reverse cut on both or just the front?
damn, twin turbo 350 + the weight/steep gearing of an allison 1000, sounds like a fairly heavy (for a tube buggy) rig. if i were you i would go with the hp 60 up front, and a huge low pinion rear (14bolt or dana70) with all aftermarket steering outers. i personally have my doubts about the longevity of stock 60 parts (the gears, the shafts, the knuckles, and end forgings) in a high powered buggy for a rear axle app.

what tires and wheeling do you wanna be able to do?

Around here (Michigan) we just run mud trucks with lttle articulation because it's not needed. I want to take the next step and head out to Moab or the Rubicon in 2007 and a mudder just isn't gonna cut it. I love the Scorpion (who doesn't) and want to build something like that, but with rear steer. 4 link in the front 3 link in the rear, air bag suspension. You are probably right the 350 duramax is a little heavy and most likely overkill, a cummings diesel is more likely a better bet because I really want the torque. I just don't want to travel all that way on my first trip and have to go around any of the obstacles, or end up with a rig thats going to fail because I get a little heavy footed, or just didn't plan enough. I am also planning on between 39 and 44 Boggers with beadlocks of course, hydraulic steering front and rear. I know very little about rear steer setups and can't find any resources. A link to these after martket parts would be nice. I am planning and designing on SolidWorks all winter and starting the build this spring. Thanks in advance.

why do you want an Allison behind a 350?

Gotta' ask............what exactly is a "350 Duramax" (or a cummings for that matter).

I didn't say allison he did. I was thinking more like a beefed up TH400. The 350 Duramax is a Chevrolet motor based on the smallblock gas engine but does have huge heavy heads. When combined with the twin turbos and a few other mods produces over 800 lbs. of torque. The Cummings is just that...a Cummings diesel.

I didn't say allison he did. I was thinking more like a beefed up TH400. The 350 Duramax is a Chevrolet motor based on the smallblock gas engine but does have huge heavy heads. When combined with the twin turbos and a few other mods produces over 800 lbs. of torque. The Cummings is just that...a Cummings diesel.

Hever heard of the 350 Duramax..........what is it used in? Is it current production or what? I'm quite surprised they would try doing in gas-to-diesel conversions after the whole Olds 350 fiasco back in the early 80's.

Also, it's CUMMINS..........no "G".

sorry no G....just do a google on the 350 duramax....it is a late model engine. I first heard about the twin turbo duramax on project SubUrban Gorilla. Its a Banks supercharged motor. (edit) it turns out the show may have been mistaken I can only find a few instances of the 350 duramax anywhere but Banks seems to offer only the 6.6 duramax. If i find a link I will put it here.

350 dual turbo Duramax Diesel trans
what i hear when u say this is:

-a twin turbo 350 gas motor in front of:

-a duramax auto transmission (which is the allison 1000)

the only thing even close to a 350 sized duramax is the 6 cyl duramax that has not been released to the public yet, and wont be for at least a year or two. i think you are mixing up your info.

by the way, the cummins weighs in at over 1200 pounds, thats almost 700 pounds more than a normal 350. if you wanna run that kind of torque and 40-44" tires, u need axles far bigger than dana 60s. 2.5 ton axles with 2" 40 spline shafts should do it.


i just tried searching for 350 duramax like u said and all i found was the old diesels that were based on the 350 gas motor. problem with them was that diesels need to be built very tough and those motors had trouble handling the high compression and violent combustion that is a diesel motor.

here is a thread that talks about the 350 diesel, read about 4 posts down, they guy goes into some detail on the gm diesels.

searching is your friend

http://www.epinions.com/content_120440721028 this guy says he has one and loves it. I am fairly sure that is the motor that is being used in Xtreme 4x4's SubUrban Gorilla only with twin turbos. I may have gotten confused with their mock up motor while they waited for their new motor but I swear they said 350 Duramax, and yes Diesel. but it seems I am just getting picked over with details of my running gear and you guys want to just correct me over stupid crap and not have any constructive things to help me out so I will find a new site. I came here because I don't know a lot about this stuff and wanted to learn.....you guys seen to know it all and want to make me feel stupid for not. I will find a new site thats not loaded down with elitist snobs that have to prove they are better than me. Thank you. And its spelled NEVER not HEVER!

http://www.epinions.com/content_120440721028 this guy says he has one and loves it. I am fairly sure that is the motor that is being used in Xtreme 4x4's SubUrban Gorilla only with twin turbos. I may have gotten confused with their mock up motor while they waited for their new motor but I swear they said 350 Duramax, and yes Diesel. but it seems I am just getting picked over with details of my running gear and you guys want to just correct me over stupid crap and not have any constructive things to help me out so I will find a new site. I came here because I don't know a lot about this stuff and wanted to learn.....you guys seen to know it all and want to make me feel stupid for not. I will find a new site thats not loaded down with elitist snobs that have to prove they are better than me. Thank you. And its spelled NEVER not HEVER!

hey dumbass, its the 6.6L Duramax, not the 350 Duramax. you're an idiot, that "one guy" is an idiot, don't let the door hit you on the way out.

I was going to help and suggest putting a TH400 behind a 350 because it would be cheaper, easier, and lighter than an Allison, and that is how I read what you asked. If you can't get your dumbshit facts in order and sound like an idiot, that is not my fault nor anyone on this forum's.

:flipoff:

I like that guy.
he posts a bunch of gibberish
then when some people wade through it trying to glean the facts to try and help him out
he insults them.

geez guys i cant believe u all were so rude to him!



:rolleyes:


i couldnt find one mean or offensive post, im glad this whiny bitch decided to leave. wtf is wrong with some folks?

I have seen a rear 60 turned into a front 60. but not the other way around. I think it could probably be done. but there would be a lot of time and money involved.

yeah, the Duramax is NOT a 350.

I doubt a TH400 would stand up behind a Duramax unless heavily built(torque is a nasty thing).

And no way would a Dana 60 running on the coast side of the gears hold up to a Duramax in stock form let alone twin turboed.

i got the best way to solve this "350 duramax" thingy yet. Just put diesel into your 350sb and go wheel:D

BAAAAAAAAAAAAAAAAHHHHHHHHHHH, thats some funny stuff. I just found this thread looking for rear steer info and this one has some good humor in it.