A guy I work with has given me a set of 4.88 gears for my JK Sport that I'm bout to make payments on to him but had a concern that someone may be able to answer for me.

1. For my JK Sport with the Dana 30 and Dana 44, will a "Short Reverse Pinion" work in the Dana 30 and will "JK Rubicon" work for the Dana 44?

I run 35s on a 4.5 lift. Any info will help

 

Are the gears from a jeep JK? And from a non-rubicon?

If so, they will work. If they are not from a JK, they will not work. If they are from a JK rubicon, the rears will work, the fronts won't.

 

They are currently brand new in the box if that changes anything

 

Give Yukon a call with the part number.

Lucas

 

The rear 44 gears should be fine, but do the fronts say they are d30 or d44? Do they specify they are for a JK? Are their specific part numbers listed?

 

The Dana 30 ring and pinion will be noticiably smaller in size than the 44. Here is a comparision photo...44 on left 30 on right

 

I know the front ones are for a D30 I'm just unsure of the whole "Short Reverse Pinion" part number is YUKYGD30SR-488JK

 

Looks like a Yukon D30 JK part number? You're good to go.

The front axles are high pinion, 'reverse rotation'. So gears that specify reverse are what you want.

These aren't for a JK, but they show the difference in the way the gears rotate.

 

Yes, that part number is for a non-Rubicon JK Dana 30

Auto Parts: YG D30SR-488JK - Yukon Ring & Pinion sets give you the confidence of knowing you re running gears designed for the harshest of conditions. Whether it s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled p

 

thank you so much!