Differential cover gasket on 1994 Dodge B250 V6 was seeping (133,000 miles) so I pulled the cover, drained the rear end, and installed new gasket. However, as I prepared to add new lubricant is when my headaches began.

Not sure of model/type of differential because no ID marks on housing. Assume it is Chrysler rear end because it took a Chrysler gasket. Have not jacked van to see if it has “limited-slip” but it has an extra metal tag on cover bolt and manual indicates the extra tag signifies that the differential has LS.

Tag on left side of cover has the number “0423.” I assume that is the gear ratio. The other tag, the one that supposedly represents an LS rear end, has the number “35.” ???????

Anyone know.....

1. What does the No. 35 on the one tag represent?
2. Is the “0423" the gear ratio?
3.. what is the best gear lube type/weight for a 1994 Dodge (Chrysler) B250 (van),3.9L, differential ( I do haul a 15' fiberglass tri-hull boat at times)?
4. What type of “limited slip” additive do I use, and in what ratio to the gear lube?
5. What did Dodge call their “limited slip” rear end in 1994?

 

add 2 bottles l/s additive and use 75w90 gear lube.