tranny removal, draining fluid?

[rattlindodge]

im gonna do a rear main seal on a truck with a 47rh 2wd, do I need to drain tranny fluid or not?

 

[jedeka]

I think it will make a mess when you pull the driveshaft yoke out of the transmission and then again if the transmission gets tilted at all.

 

[Tate]

I'd imagine you're gonna need to disconnect the cooler lines and pull the dipstick tube to pull the tranny. It'll save a hell of a mess if you drain it first before it drains itself on the floor.

 

[rattlindodge]

The rear seal leaked a bit, one cooler line leaked a little, made a huge mess dropping pan, and trans where cooler goes is still pissing out quit a bit, drip drip drip. 7 of the torque converter bolts were well rounded, the 8th missing. Man I hate atf!