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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 77 cc lb on July 13, 2010, 07:28:23 pm

Title: trans. doesn't want to shift
Post by: 77 cc lb on July 13, 2010, 07:28:23 pm
hey everyone. i just finished replacing a flywheel on my 292-6 in a 77 3/4 ton 2wd. i reconnected trans and go to put in gear and it doen't want to move. plus my brakes go all the way to the floor and my pwr.steering is gone. i know thepwr. steering fluid is low but how do i fix one and end w/ two new problems. as far as i can tell all my vac lines are connected,  i'm baffled. thanks for any advice.
Title: Re: trans. doesn't want to shift
Post by: VileZambonie on July 13, 2010, 08:14:11 pm
What transmission is in it? Auto or manual?

Do you have hydroboost?

Top off your fluids.
Title: Re: trans. doesn't want to shift
Post by: Irish_Alley on July 14, 2010, 01:17:39 am
Man your having nothing but bad luck with this truck lol. But I imagine its auto since you have a fly wheel and never said anything about the pressure plate, is your shifter moving and the linkage on the trans is moving? stupid question but you did bolt the tq converter back up right? Almost sounds like hydro boost problem if you have it don’t know much about them but like vile said check your fluid level
Title: Re: trans. doesn't want to shift
Post by: Blazin on July 14, 2010, 06:33:26 am
Flywheel is for a stick, flex plate for an automatic.
 If its a stick is the clutch disc. in backward. A backward clutch disc will not let the trans go into gear except when not running.
Title: Re: trans. doesn't want to shift
Post by: Irish_Alley on July 14, 2010, 08:24:13 am
lol shows how much I know.
Title: Re: trans. doesn't want to shift
Post by: 77 cc lb on July 14, 2010, 03:07:30 pm
yes this truck has been a thorn in my side but how often do you come across an old crew cab. i went to shift into gear and it wanted to go forward, but had to give it a lot of gas and would still barely move. some fluid came out when putting tranny back in but i didn't think that would make a diff. it has the th 400 trans. my u joints were kind of tight going in would they bind driveshaft up?
Title: Re: trans. doesn't want to shift
Post by: Irish_Alley on July 15, 2010, 09:06:52 am
About the u joints if they bind something would of snapped. How much fluid did you lose?
Title: Re: trans. doesn't want to shift
Post by: jaredts on July 15, 2010, 09:51:30 am
Did you fill the torque converter with atf before installing?
Title: Re: trans. doesn't want to shift
Post by: 77 cc lb on July 15, 2010, 11:23:02 am
i'm thinking i only lost a qt if that. i'm getting it warmed up now to check. i didn't take out the torque conv. would that make a diff? my brake fluid was low so i fixed that. going to get a new pwr. steering pump this w/e so hopefully another prob. down.
Title: Re: trans. doesn't want to shift
Post by: Captkaos on July 15, 2010, 02:26:46 pm
Check the fluid most definitely.
Title: Re: trans. doesn't want to shift
Post by: 77 cc lb on July 16, 2010, 04:05:23 pm
had to add about 3qts of trans fluid and tighten up the power steering belt and all is well. went for a drive and everything seemed good. just need the distributor set right. thanks for the info gents, appreciate it!