4.88s

[87LaredoXJ]

I am gonna be upgrading to 4.88s and 35s here soon. Just as soon as I figure out if I need to buy new carriers as well. I have a HP Dana 30 up front and a Dana 44 in the rear with 3.54 gearing. Do I need to by the carriers as well I found the set of gears and master install kit but I have no idea what is needed please help. Thanks in advance.

[94ToyBear]

Are you locking either front or back ?

[87LaredoXJ]

Not locking them I know I should but cant right now.

[Robert B]

okay dana 44 and down axles split at 3.73 and down and 3.90 and up so yes you need a carrier and the master install kit is a good thing to do

[Robert B]

and just curious you sure you want to go that big of a jump and go that deep ??

[BLOODBANE]

I run 4:88's and 35's on my Explorer. It set it almost back to stock rpm for the highway travel. I should have held out for the 5:13's (for some gear for crawling), but everyone was out at the time. I have been happy with the 4:88's.

[jayson44]

I've got 4.88 and 35s on my TJ with the 4.0. almost stock, but with a little more gear. but I've also got the 5-speed...

J.

[xaza]

I run 4.88 in my XJ on 35s. Got almost 18 mpg on way back from Buena Vista fully loaded from camping. The Dana 30 will need a high ratio carrier as well.

[Serious Offroad]

Yes on needing new carriers.
Do yourself a huge favor and save up for full-case selectable lockers....you'll thank me later.

[87LaredoXJ]

I cant seem to find the new carriers anywhere. Everywhere I look all i seem to find is just the ring and pinion set not the carriers. I ordered the gears and instal kit from rwk hauss supply. Does anybody know the part number I need for the carriers. Hopefully not to expensive. My wife already has me in the doghouse for buying stuff for my jeep. So any help is much appreciated.

[redneck23ms]

dana 30 http://www.ebay.com/itm/NEW-JEEP-DANA-30-BARE-OPEN-CARRIER-CASE-3-73-UP-706008-/330726755975?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d00d9ce87&vxp=mtr
dana 44 http://www.ebay.com/itm/DANA-44-BARE-OPEN-DIFFERENTIAL-CARRIER-CASE-3-92-AND-UP-30-SPLINE-706025-/271511684241?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f375b8491&vxp=mtr

[87LaredoXJ]

Thanks looks like im in the doghouse even further

[Serious Offroad]

Did you click on my sig?

[redneck23ms]

they can probably be found cheaper. that was just a quick ebay search

[Hypoid]

Did you click on my sig?Is that like pulling your finger???

Since I have no shame:

http://www.seriousoffroadproducts.com/Axle-DriveTrain/Lockers-Carriers/Dana-Spicer/Dana-Spicer/Dana-30-Open-Differential-Carrier-Case-3.73-And-Up-Gears

http://www.seriousoffroadproducts.com/Axle-DriveTrain/Lockers-Carriers/Dana-Spicer/Dana-Spicer/Dana-44-Open-Differential-Carrier-Case-3.92-Up

:)

[87LaredoXJ]

I just did looks like im ordering from you thanks. The kit I bought came with thick cut gears for the 44 rear

[redneck23ms]

you shouldn't need a new carrier for the 44 then if you have the thick cut gears

[87LaredoXJ]

Sweet guys thanks for the help. I bit off more than i could chew myself but think i figured it out now.

[87LaredoXJ]

Now the question is what gear oil to buy. I appreciate the help guys.

[Serious Offroad]

75-90, any house brand is perfectly fine as long as it has an API Seal.
Don't get suckered into the Red Line/Lucas/Royal Purple nonsense.

[Serious Offroad]

Are you planning on doing the gears yourself?

[87LaredoXJ]

Sweet thanks i bought my front carrier from you. Thanks for all the info.

[87LaredoXJ]

I got a friend who is gonna help after buying everything i cant afford to pay somebody the good thing is it can be parked for awhile so i can take my time with them

[JeepWrench]

FYI I have a friend who regears jeeps all the time and does fr and rear for 900 out the door parts and labor