4.88's and HP30

[jeepme]

Are 4.88's bad for a locked HP30? I thought I heard that the gears are weak. Has anyone ever broke a 4.88 ring and pinion in HP30. Mine has a ausie locker, warn shafts and hub kit, and I am running 35" tires. I need to change gears and I am just wondering if it is worth getting a d44 rear and putting in 4.88's or keaping my 8.25 with ARB and Dutchman shafts and just going with 4.56's.

thanks

 

[Fergie]

Do a search under "BillR" and you'll find some good info.

Fergie

 

[BennettXJ]

ive run 4.88s in my lockrite'd 30 on the unit-bearing hubs and had no problems with the gears or anything at all. i DID go through hubs quickly, but i dont attribute that to the gears at all. i was light on the throttle though, so that always prevents broken parts (or at least makes them last longer).
-Bennett

 

[jrsxj98]

I just installed 4.88's and a detroit. I did alot of searching and question asking prior to doing this. The only ones I could find that had problems were guys with alot of horsepower, and spinning large tires at high rpm's, ie mud boggers. Every one I talked to including the reps for superior, yukon, and precision said I shouldn't have a problem.

 

[Kejtar]

Are 4.88's bad for a locked HP30? I thought I heard that the gears are weak. Has anyone ever broke a 4.88 ring and pinion in HP30. Mine has a ausie locker, warn shafts and hub kit, and I am running 35" tires. I need to change gears and I am just wondering if it is worth getting a d44 rear and putting in 4.88's or keaping my 8.25 with ARB and Dutchman shafts and just going with 4.56's.

thanks

I got 4.88's and detroit and they've survived so far Rubicon, couple local trips up to big bear and 6 days of wheeling in Moab. Plus I run stock shafts .

 

[BillR]

I got 4.88's and detroit and they've survived so far Rubicon, couple local trips up to big bear and 6 days of wheeling in Moab. Plus I run stock shafts .

That one trip up Widowmaker was a year's worth of abuse for most people.
Seriously, you should be fine with that combo. I'm also running a hub kit with alloy outers and welded 760 u-joints.

 

[Kejtar]

That one trip up Widowmaker was a year's worth of abuse for most people.
Seriously, you should be fine with that combo. I'm also running a hub kit with alloy outers and welded 760 u-joints.

LOL but there I just spun the tires and there was no bouncing or anything that could be bad for them.

 

[Big Red]

Are 4.88's bad for a locked HP30? I thought I heard that the gears are weak. Has anyone ever broke a 4.88 ring and pinion in HP30. Mine has a ausie locker, warn shafts and hub kit, and I am running 35" tires. I need to change gears and I am just wondering if it is worth getting a d44 rear and putting in 4.88's or keaping my 8.25 with ARB and Dutchman shafts and just going with 4.56's.

thanks

Jeff, I think you should buy my xj dana 44 for $400 and gear it up with the front to 4.88's. You will be very happy with it.

Then you can sell your 8.25 for decent $ to get your $ out of it. If you do keep your 8.25 than 4.56 are the lowest you can go which isn't that bad, but not as nice as 4.88 gears. I had a 8.25 so I was only able to get 4.56, but then I bought a rev dana 30 with an arb and then found a xj dana 44 with a detroit and 4.56 gears, so I stayed with 4.56's. It's not worth the $ to go from 4.56 to 4.88 gears so do it when you have the chance.
Troy

 

[Rawbrown]

a lot of folks are running that ratio. don't worry about it. I am runnign it locked with 33's and CrMo inners.

 

[jeepme]

Great thanks guys now I just got to see if it is worth changing the rear axle to run the 4.88's.

Anybody know what a 29 spl.8.25 with Dutchman shafts and a ARB with 4.10's is worth

 

[Capt. Nemo]

I'm running the same set-up, except with stock shafts out front: HP30, 4:88's, 760x u-joints, Aussie Locker, 35" BFG's, and stock shafts. I've had no problem whatsoever with the gears. I've broken numerous u-joints, and I've even twisted the splines of the long side inner axle shaft. Gears are fine...

 

[Fergie]

Great thanks guys now I just got to see if it is worth changing the rear axle to run the 4.88's.

Anybody know what a 29 spl.8.25 with Dutchman shafts and a ARB with 4.10's is worth

I'd be interested in your Dutchman shafts, even swap you for my stock shafts so you still have a whole axle to sell.

PM me if you're interested.

Fergie