What Truck Fluids Needed...

[radar doctor]

I have 56 kmiles on my 99 4x4 truck. I need to change the front and real end fluids. What Brands and weights do you recomend??I have Non Slip Rear end... I already have the proper fluid for the trany. thanks

 

[DPKetchum]

80w90 synthetic and there are numerous brands out there,my own preferance is amsoil.

 

[LSMITH]

I like the Mobil synthetics, available in both 75w-90 and 80w-140. If you don't tow heavy and hard a lot I would use the 75w-90, plenty of thickness with cooler running and better economy. If you tow heavy and hard I would put in the 80w-140. Mobil is easy to find if you need a little more, cost is reasonable, and works great. Some of the other suggestions you are going to be for products that are hard to find and very expensive. I have yet to see testing that proves they are any better.



If you have the LSD buy a bottle of the Mopar friction modifier from a dealer, at less than $8 if you don't need it you are not out a lot.

 

[radar doctor]

Fluids

thanks guy's for your help. One question , Do I use these fluids in the front as well as the rear. This is a 4X4 ok??

 

[DPKetchum]

YES!Also don't get carried away with sealant on differantial covers,too much will and can get into differantials.