Any GL-5 80w-90 gear lube should work just fine for your truck, no additives needed for your 2-speed...

https://www.tractorsupply.com/tsc/product/traveller-gear-lube-sae-80w-90-2-gal-t805400

Reminder, do not use SAE-90 Mineral Oil in your rear, that's for the Transmission ONLY...

Mike B smile


Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD