tungoil

Does the front axle differential use the same 80/90 weight gear oil as the rear axle or is the a different grade because of the 4 wheel drive.

Thanks

angus10

Same.

__________________
98 Ram 1500 4x4
Hypertech
Magnaflow Cat.
Flowmaster American Thunder W/super40
14x3 AF mod

HEMIDAZE

Dodge was having some problems with these rear ends. Their solution was to use synthetic in all of them from the factory since 2003. You don't have to use it, but it is better.

__________________
HERS---> 2006 Grand Marquis GS (replaced my 1998 w/cracked manifold)
HIS----> 2003 Dodge 1500 HEMI QC 4X4

angus10

Like you said, the rearend. And that was only for the crappy LSD rearend. However, He was asking about the front.

__________________
98 Ram 1500 4x4
Hypertech
Magnaflow Cat.
Flowmaster American Thunder W/super40
14x3 AF mod

HEMIDAZE

I'm not sure if they included the front on the TSB. My daughter has the same truck I do. When we did a fluid change hers had synthetic in both, mine only had it in the rear.

__________________
HERS---> 2006 Grand Marquis GS (replaced my 1998 w/cracked manifold)
HIS----> 2003 Dodge 1500 HEMI QC 4X4

wafrederick

Do not use synthetic gear lube!The problem with synthetic gear lube is that is too hard on ring and pinions.I know of three rear ends going out due to synthetic gear lube.My father's friend Rich has seen it,replaced gear sets due to use of synthetic gear lube and one gear set was down to the size of a pencil tip.Synthetic gear lube is also not recomended for Dteroit Lockers.