At 20K, besides usual motor oil change, decided to change all the fluids. Figure a 1000 miles in 4wd and often towing were good enough reason to do it now.
Running Penzoil platnium full syn in motor. They just came out with new formula, and for $18 bucks for 5 quarts, why not.
In Manual transmission, transfer case, and front differential used 5q of 75w-90 full synthetic. Tranny & transfer case were pretty clean. Front diff was a bit dirty.
In Rear differential (LSD) ran 3q Quaker State 80w-90 Synthetic blend. Full syn not offered in that weight except amsoil and redline, and those aren't easily purchased around here. The old fluid was filthy and stunk. No LSD chatter, will add friction additive if needed.
The drain and fill plugs are the large 24mm socket, except the front diff is a 10 mm hex key. I sprayed all the plugs with wd-40 before trying to get off. Most were rusted pretty good after 2 winters in salted roads. All plugs had a bit metal shavings stuck to the magnet. One tip, an empty 28 lb pail of cat litter holds all the fluids nicely.
Well, took a couple hours but was time well spent. Tranny is smoother shifting, and she shifted in and out of 4hi & 4lo and back again quicker than normal (or maybe it was a good day). Total for gear & motor oil was $100. Figure the dealer offers the same service for $350, and with cheapest oil.
Running Penzoil platnium full syn in motor. They just came out with new formula, and for $18 bucks for 5 quarts, why not.
In Manual transmission, transfer case, and front differential used 5q of 75w-90 full synthetic. Tranny & transfer case were pretty clean. Front diff was a bit dirty.
In Rear differential (LSD) ran 3q Quaker State 80w-90 Synthetic blend. Full syn not offered in that weight except amsoil and redline, and those aren't easily purchased around here. The old fluid was filthy and stunk. No LSD chatter, will add friction additive if needed.
The drain and fill plugs are the large 24mm socket, except the front diff is a 10 mm hex key. I sprayed all the plugs with wd-40 before trying to get off. Most were rusted pretty good after 2 winters in salted roads. All plugs had a bit metal shavings stuck to the magnet. One tip, an empty 28 lb pail of cat litter holds all the fluids nicely.
Well, took a couple hours but was time well spent. Tranny is smoother shifting, and she shifted in and out of 4hi & 4lo and back again quicker than normal (or maybe it was a good day). Total for gear & motor oil was $100. Figure the dealer offers the same service for $350, and with cheapest oil.
