6 speed manual uses ATF fluid?

[elkmontarms]

Hi All,

I am new here, been lurking for a while. I just picked up a 2000 F-350 7.3 Diesel 4X4 Crew Cab with the 6 speed manual transmission. I was told this transmission and transfer case takes ATF fluid and not normal 80/90 weight gear oil like most manuals.

Is this correct or was I told a bunch of BS, this just does not seem right. I have had Toyotas and VW manuals and they all took normal gear oil in the tranny.

I want to put the best fluid in the transmission. What do you all recomend and how much do I need to get to do a complet change.

Thank you all very much for your time and help

[2005F250]

It takes ATF.

[Cj Ford]

Originally Posted by 2005F250

It takes ATF.

yup it takes regular ATF I changed mine when I put my new clutch in last summer

[AFBLUE]

Its like 16qts of ATF, has something to do with the syncros in it. Actually all at least 95+ manual ford trucks use ATF.

[diesel_19]

dam thats weird i never knew that

[NCHornet]

YEP ATF it is, Mercon V is fine to use in the manual and TC, I wouldn't put it in the 4R100 though. Good luck with your truck.

NCH

[elkmontarms]

Thanks folks for all the help. I did the job today and it was very easy but messy. The 6 speed manual with the trans cooler takes just about 6 qts.