727 lost drive

[jwells1993]

hey guys so i was out screwing around with the car and i hurt it i lost drive it goes in itll rev up a barely move 2 is same way as drive and i still have park reverse neutral and 1 my guess is is i need the trans rebuilt or is it something else?

[justcruisin]

First step - make sure of your fluid level. Sounds like it is going into the correct positions so if the fluid is OK it will be pan off to inspect. Most probably something connected with the rear clutch pack or the clutch assembly itself, could be a loose valve body. If the valve body is secure, it will need to come off and the rear clutch pack air tested. Not your brakes holding up?

[jwells1993]

defiantly not the brakes ive been driving it here and there for about a month or two

[John_Kunkel]

Manual VB or auto?

If auto, place the shifter in 1, if it will move in 1 with no slip but not in Drive you've lost the sprag. If it still won't move without slipping, it's the rear clutch.

If manual, it's the rear clutch.

[jwells1993]

Manual VB or auto?

If auto, place the shifter in 1, if it will move in 1 with no slip but not in Drive you've lost the sprag. If it still won't move without slipping, it's the rear clutch.

If manual, it's the rear clutch.

i imagine its an auto came stock out of a winnebago i have first just not drive or 2nd

[John_Kunkel]

If it will "barely move" in Drive, try shifting to 1. If it still barely moves in 1, the rear clutch is the problem but if it moves OK in 1 but not in D, it's the sprag.

You have to realize that, with an auto trans, shifting to 2 or D while standing still has no effect, it still takes off in 1st

[jwells1993]

If it will "barely move" in Drive, try shifting to 1. If it still barely moves in 1, the rear clutch is the problem but if it moves OK in 1 but not in D, it's the sprag.

You have to realize that, with an auto trans, shifting to 2 or D while standing still has no effect, it still takes off in 1st

thats what i mean i have 1 if its in one and barely moves in 2 or drive can i just swap sprag and new filter or would it be better to rebuild the whole thing

[c00nhunterjoe]

To replace the sprag you have to tear down. Might as well plan on an overhaul at that point. How did you hurt it? Burnouts in 1st and second i assume?

[jwells1993]

To replace the sprag you have to tear down. Might as well plan on an overhaul at that point. How did you hurt it? Burnouts in 1st and second i assume?
[/quote

launching off a stop light

[John_Kunkel]

thats what i mean

If you used punctuation you would be easier to understand.

[c00nhunterjoe]

Launches dont typically break a sprag, unless you were spinning and let it hook or it was wheel hopping.