So you want to go faster?

[area52]

Just saw this over on Pirate4x4, - new gear sets for the 2.5 Rockwell diffs - 4.90 !!

Somebody put these in and see how they perform.

Rockwell Gear Sets - Pirate4x4.Com Bulletin Board

Edit: Checked Ouversons site and they are $1200.00 a set

https://store.oemaxle.com/product_info.php?products_id=90

 

[frodobaggins]

Sweet Not for my deuce, but will keep in mind for another project.

 

[FireFighterHill]

How much faster would that allow you to go? And by the way I hope the 1200 bucks for at least 2 sets cause damn thats alot of money.

 

[tm america]

thats a nice set up alot better than those 5.40 gear sets they sell for like 4000 bucks a set

 

[Jakob]

I figure you could run about 75mph with 900's at ~2000rpms.

 

[bbf]

i cant stay in one lane at 50 plus mph i will be in 2 lanes at a higher speed

 

[GoHot229]

BBF's right about the lane thing.....mabe with off brand street type tires in a 9 or 10.00x20 you could recoup some of the steering capabilities ? .....but oh yea, those are WAY cool to think about retrofitting into the Rockwells. Wish the price was more afordable, but as with anything new, production and tooling costs got'a come from somewhere.

 

[Broke Down]

give those gears a little time and they will come down when they sell more of them. that would be nice to have. i bet it would be a scary ride though....lol. i would like to hear from someone that is running them though. could you imagine passing someone on the interstate

 

[Ferroequinologist]

That should help MPG too... Unless you are burning whatever you can find, then it doesn't really matter too much. I wouldn't mind doing this one day, when the cost a set isn't a whole nother deuce! LOL

 

[jasonjc]

i cant stay in one lane at 50 plus mph i will be in 2 lanes at a higher speed

If you can stay in one lane there is some thing wrong with your truck. Mine will run down the road just fine at 55-60. Even when the right front tire blew out it was still easy to drive and control.

 

[wreckerman893]

If you want a 70 MPH deuce you better think about some 70 MPH brakes to go with it.
Running over a Honda that cuts in front of you and slams on the brakes can ruin your day.
The single master cylinder design needs to be addressed also.

When I was in the army in the 70's I spent two years in Germany......I put over 50,000 miles on a deuce driving for the mess hall and supply room.......brakes were my major headache.
I was constantly adding fluid and having air packs and master cylinders replaced.

I have heard that disc brakes can be adapted to the Rockwells but without fluid you are still screwed.

Maybe one of our master fabricators can come up with an easy resto install that would make our trucks safer.

 

[FireFighterHill]

From what ive read on this site, making our own "dual circuit" brakes should'nt be to much of a hassle. From what I can deduce from the schematics ive scene we would need, a second air pack and a second master cylinder and plumb in the new lines. It would deffinetly be a weekend project but I think its very doable once the parts have been accumulated and mounting solutions found.

 

[FireFighterHill]

I also found some pinion disc brake kits.

DIY4X: Catering to those who enjoy doing it themselves. OR http://www.evolutionmachine.com/index.php?showtopic=3216

Could you use them to supplement the drum brakes already on the Deuce?

 

[Corey]

www.ouversonengineering.com makes really nice disc brake kits too. Randy also makes selectable front locking hubs for 2.5 ton Rockwells. He is a machinist who designs and manufactures almost all the parts himself.

 

[tm america]

i agree if you using twoanes get it checked out something is wrong with the truck or driver mine will run 70 nice and smooth all day .and seventy doesnt mean you need to drive stupidly brakes are fine ofr us guys that dont tailgate .i just wonder if the deuce will have enough power to move itself with 4.90 gear since they dont do to good even with 6.72s

 

[randyscycle]

My question would be: with anything over stock 9.00's, you'd probably have to take off in low range to get rolling without riding the clutch wouldn't you?

That's a significant difference in ratio......

 

[swbradley1]

If you can stay in one lane there is some thing wrong with your truck. Mine will run down the road just fine at 55-60. Even when the right front tire blew out it was still easy to drive and control.

Either of my trucks do fine staying in a single lane at 55.

sw

 

[swbradley1]

From what ive read on this site, making our own "dual circuit" brakes should'nt be to much of a hassle. From what I can deduce from the schematics ive scene we would need, a second air pack and a second master cylinder and plumb in the new lines. It would deffinetly be a weekend project but I think its very doable once the parts have been accumulated and mounting solutions found.

Not being the brake engineer why would you need two master cylinders? I would think that you could replace the MC on the Deuce with something akin to a 1-ton HD with power brakes of some sort. But now that I think about it that means a vacuum system..........

Oh well, I said I wasn't a brake engineer.

Who would want to go driving on a home made dual brake system? Anyone?

sw

 

[drgreg]

I like my trucks just the way they are.

 

[hndrsonj]

The TM for installing the split brake system is in the resources section. It uses 2 air packs and a dual master cylinder.