Hey guys. I'm thinking about doing Currie high pinion dana 60s in my xj over the next year. Anybody have any experience with em?

I'm just wanting to order housings and run my choice of parts whenever I get ready to install. I'll be doing a Clayton 6.5" lift with 35s at the same time. I think I'll be doing everything in a 1ton setup to run a decent wheel.

 

Full widths for 35s? Seems a bit overkill IMO but its your jeep. Post some picture updates.

 

1 tons with 35s is way over kill and you'll have no ground clearance between the center of the diff.37s is the smallest tires id run on a 1 ton axle off road.

 

It normally would be but a head/cam ls1 with a little huff of nitrous backed by a 4l80e will be making its way between the fenders later. Wanting to do the drivetrain first and I want it to be a truck that I can drive 6hrs do some wheeling and drive it home.

 

I picked up a used rock jock 60 a couple years ago. It's amazing. The smooth rounded bottom slides over everything with ease and gives it the ground clearance of a D44, which is a perfect match for my shaved 14 bolt. housings pop up all the time in the pirate4x4 for sale section, can't see myself buying one of these brand new from currie. I think this is a good axle for 37" tires but I don't see you having any issue running 35's (guy I bought it off was running 35's)


a rock jock on 35's would have the same clearance as 37's and a regular D60
so if you run 37's, you'll have the clearance of almost a 40" tire


the stock 4.0/np231 did fine with the axles geared to 5.38 but ultimately left me a little wanting. a t-case with deeper gears would do the trick but I'm also headed the LS route

 

I'll keep an eye out on pirate. I haven't looked around over there in a long time.

I'm wanting to go overkill on axles. I don't want to get on the back side of somewhere and break an axle or diff bc it's not quiet enough. I figure a 40 spline axle and a locker in the rear will be plenty and probably a rcv and Arb up front.

The engine combo should be a solid 400rwhp on motor. I had considered going the turbo route but there isn't much room to mount an intercooler in these things and keep the ac etc. I know more about nitrous tuning anyway.

 

I don't honestly know if they can fit 40 spline in these things. When I compared my 35's to my buddies 40's they were huge! Make sure to confirm that before going to far


If you want true overkill you need to be looking at a rockjock 70 or even a rockjock 80. In my setup, the weak point is that little ring and pinion and the weak Yukon shafts. I wouldn't even consider the D60 it's just not that great a platform anymore. I also would not consider a HP rear axle, the coast side of the gears is about 30% loss in strength


if budget really doesn't matter I'd be looking at a gearworx HP10 in a spidertrax chromoly housing. and I don't see the point in doing nitrous or a turbo. The pros of this sport mostly keep their LS motors N/A


and remember, bulletproof is going to ultimately be on your driving style. anything can break. I don't know how hard you plan to drive this thing but I've seen cheap Toyota builds go forever, and I've seen $100,000 ultra4 cars break to pieces in a rollover

 

If you want overkill then you want rockwell 2.5 ton you can run 54 inch tires and 20 inch rims on that.

 

Rockwells are for mud boggers.


I'm assuming you want the Currie housings because they bolt in?


If you're seriously going to make that much power the rear needs to be linked which would negate the need for a bolt in axle and I'd be looking at 14b's or 10.5's. I think the money would be better spent on any 78+ 60 or a custom drop out housing that will for sure hold 40 spline stuff because like Jake the Snake said I don't think they will fit those housings.

 

Some of the rock bouncer guys here run rockwells with no problems.Its mostly for tire size,A 1 ton axle is good tell about 44s past that you need rockwells.

 

Never said there were problems with rockwells, I just said there is no need for them. Who is running over a 44 in a serious rock bouncer? They all run 44's or 43's. And there are plenty of parts to hold up before going to a Rockwell. 14b fronts are a better idea. Width, weight, and having to run enormous tires are the reasons they aren't the go to axle swap. Not to mention them under a XJ would require some really tall lift.

 

I was trying to find the picture to match this statement, but I just saw a Rockwell snapped in half on Facebook. big dumb axles


Will I actually just saw some 40spl currie axles. They're under that Falken car that's up for sale I think they're RJ70 or RJ80 though, not a 60

 

If it's not a 40 spline 14b it's 👎🏻

I saw a Rockwell break in half on 43's on New Years at AOP this year.

 

sounds heavy how about a 40 spline gearworx 10"?


I forget it takes awhile for you technology to reach you East coast types

 

Pfff my buddy runs a GW hi 10 with Superduty outers re drilled. His is 35 spline stuff. I forget about a lot of that custom drop out stuff since so many people just build custom 14 bolts around here. He has like 10k in his front axle alone. Insane.


Come to think of it another friend is building a u4 car and he has 40 spline something in a GW hi 10.

Do big bell RCV's in a Dana trac 80 with super 60 outers with rear steer like burkey. 16 spline 2-3/8" shafts