Streaty383

Trying to pull my mates 4L65E down and having alot of trouble removing the output flange, that things on there tight as a nuns nasty

mrvedit

"output flange"? Do you mean the tail housing or the driveshaft yoke? Or something else?

Streaty383

The driveshaft yoke. Won't budge, and I'm not sure why

coryforsenate

iTrader: (1)

That's odd. Mine pulled right out with one hand and went back in with no effort.

Streaty383

Yeah, I've been told it's supposed to just slide out but no such luck, and I don't wanna just flog the hell out of it for obvious reasons

forcd ind

iTrader: (7)

Did this thing have a center support or something on the driveshaft
Could it have a bolt in the center-it doesn't look like the yoke was
sliding in/out, more like fixed

clinebarger

That's the slip yoke used on GTO's (In the States anyway), It should slide right out.

Its either rusted in place, Or the splines are twisted (Yes, I have seen a twisted OE Spicer yolk before)

If your tearing the trans down, Remove the 6 tail housing bolts, Remove the output shaft snap ring, & slide the output shaft & tail housing out together.

mrvedit

It is important for the slip yoke to slide in and out a bit as the rear suspension moves up and down. Else the up/down suspension movement will put great strain on the motor and trans mounts.

While clinebarger's "Remove the output shaft snap ring" is correct, you have to remove the pump and input drum assembly, with the reverse drum, to get to the output shaft snap ring. And to get the reverse drum out, you may need to first remove the band, and to remove the band you probably have to remove the servo. In other words, disassemble much of the trans.
clinebarger can probably do all that in the dark while watching TV.

clinebarger

I thought he was tearing it down?

mrvedit

I though he was just "dropping" it, perhaps to replace it.
Perhaps the OP will tell us what his overall plans are.

Streaty383

Okay, maybe I lied a little. The engine and trans have been transplanted into a different car and I need to remove this output spline to have a new driveshaft made. Ideally I'd like to avoid pulling the whole transmission apart, but I have the ability to do it myself so it's not a great loss. I was sort of hoping it was some kind of bolt in flange but sounds more like something inside is cactus

mrvedit

Understood. Good luck solving this problem. Keep in mind that one snap ring is all the keeps the output shaft in place; serious hammering on the yoke might break it.

Streaty383

Serious hammering on the yoke may also break something else. I think it needs serious thought and planning more than serious hammering :S

Streaty383

Not sure if it's pertinent, but this transmission is out of an Australian Holden

clinebarger

Same as the GTO we have in the States.

Have you tried to lightly tap on the yoke?

Drill a 5/16" hole through the center of the Yolk, Guessing you have a 3-jawed puller, The puller will have a beveled adaptor of some sorts, Remove it, Replace with a Push Rod (cut to length if needed), Pull directly against the output shaft.

Streaty383

I tried a bit more than lightly tap the yoke haha. I might give your idea of drilling a hole and using a puller, see how it works out