1993 dakota 3.9l automatic 4x4, rear main seal is leaking and was wondering what do i have to do to change it. just drop the tranny? or the oil pan? i dont know and its getting worse and really dropping alot of oil.

 

Can be done by just dropping the pan. Is little trickey job to slip out the old one and slip in the new one. Someone here my give you a play by play discription how to do it.I had mine done by a mechanic. Are you sure it is the rear seal andnot oil leaking from the back of the valve covers and running down the back of the engine? Feel around on the back of the heads and if they are oily then that could be it.

 

Ya it also could be the oil pressure sensor that is leaking. It happend to me where the sensor just failed and started leaking. Or it could be the oil filter not tight enough or oil pan gasket. Make sure it is rear seal before you tear into it. For full discriptions of how to. Go to any autoparts store get a chiltons or haynes manuls they will give step by step prosses. For around $12

 

X2 on the oil pressure sender mine was completly broken off, as far as what would be involved in the replacing the seal, since urs is a 4x4 in order to get the oil pan off you got to drop the axle down to give you clearance.

 

Mine was leaking bad when I bought my 88, turned out it was valve cover gaskets....so ireplaced them, and threw in a new oil drain plug just because

 

mine was from the sending unit as well, and valve covers.
rear main seals are a fair bit of work

 

definitely get yourself a manual and when your there, get some "Brakleen". spray down your engine, wipe it off all clean and then drive the truck for a day or 2 and check to give you a better idea of where the leak is. thats what i did when my valve covers where leaking.

hope it helps.