Having problems with your 1999 Chevrolet Silverado 1500 ?
What rearend oil do I need for a 2002 chev hd 25000 4 wheeler with 4:10 gear ratio is it synthetic
The gear oil used is 75W90, one of the best synthetic oil out there is Sever Gear 75W90 from Amsoil. There good up to 100,000 miles or 50,000 under sever use, but i don't think your going to be doing that unless your planing to drive your truck like a rig. Good luck and hope this helps.
Yes you need full synthetic oil. It uses 75w-140 weight. About 3 to 3.5 quarts.\015\012Charlie
Repair Help & Product Troubleshooting for 1999 Chevrolet Silverado 1500
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