Best weight or GL ratings for engine, transfer cases, transmission and differentials.
1964 FJ40 3 speed oil recommendations (2 Viewers)
- Thread starter maldoran
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I run cheap auto parts store brand GL5 in trans t case, and both differentials. Delo 400 motor oil. Delo is for diesels but modern combustion oils lack zinc, delo, I'm told has just enough Zinc to work great on our old f engines, which are really not picky at all. They'll run for years on elephant renderings...
I did 85-140 gear oil in the cases. When its like 30 below zero, moving the shifter is like pushing a spoon threw peanut butter. Once the rig moves 5' or so, it shear thins enough to work like normal. Engine oil, 20-50 3 seasons and 10-40 winter. I have and use a block heater.
- Thread starter
- #4
what about the GL rating. Are there yellow gears that need to be considered?
There's synchronizers on 2 and 3.
They'll be fine with either gl4 or gl5
Toyota 3 speed boxes are not picky about fluid. Use something cheap, so you're not wasting big bux when it leaks out on the ground...
They'll be fine with either gl4 or gl5
Toyota 3 speed boxes are not picky about fluid. Use something cheap, so you're not wasting big bux when it leaks out on the ground...
I'm sorry I don't remember exactly what the gear oil I used back in about 1985. It came from a local Man-a-fre outlet. I think it was Kendal brand, but I know it was 85-140. I like Castor and Valvoline and the Shell diesel engine oil.
Green Bean
GOLD Star
If I’m not mistaken the FSM recommends GL4 in transmission and T-Case. For simplicity sake, I use it in the differentials as well. Driven makes a nice line of oil and gear products.
I’d stick to GL-4 in the Transmission and Transfer case, in the differentials, there is brass and copper, so you may want to at least think about GL-4 there also. In the differentials, I just make sure it’s a rated Hypoid oil.
