Sierra Trans Fluid

[rm25x]

Ok been searching this site and the net, without any luck. What fluid goes in the transmissions on my new Trail Boss?

Thanks

[Amphiman1]

trail boss

they are supposed to use 30 w non detergent,.... i used to use type f, kept it cooler too...

Ok been searching this site and the net, without any luck. What fluid goes in the transmissions on my new Trail Boss?

Thanks

[rm25x]

Ok thanks

[Jeff t-boss]

Amphiman; What is "TYPE F"? As opposed to straight 30W?

[rm25x]

Type F is a type of automatic transmission fluid. Its a little thicker then the normal Dexron 3 that GM and others use. Type F was introduced by Ford in 1967 for their automatics. Also used by Toyota.

[Jeff t-boss]

That is interesting as I was kinda at the same point you are when I rebuilt my trannys. The manual says straight 30 wt, but somewhere I read to use the ATF. I ended up going with the ATF, and my trannys do run hot. I had 1 up to 300 degrees after some heavy snow plowing this year. I have new bands, and they are adjusted correct. No drag or excess travel, I guess I just beat them too hard.

[rm25x]

Well I went the ATF route since I had some.

[Amphiman1]

sierra tran's

Amphiman; What is "TYPE F"? As opposed to straight 30W?

Sorry, i was in a hurry.. was going out aatv'g