73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: jetman373 on June 20, 2006, 11:11:00 pm

Title: 700r4 problem
Post by: jetman373 on June 20, 2006, 11:11:00 pm

I just bought a 84 gmc 1/2 ton. 305/700r4. When I put it in reverse, It makes a grinding noise. Almost sounds like I put it in park while driving. Anyone ever hear of this?

Title: Re: 700r4 problem
Post by: bfofish on June 20, 2006, 10:27:00 pm

did you try checking your linkage? mine did that one time,and i adjusted the linkage and that took care of it.

Title: Re: 700r4 problem
Post by: jetman373 on June 20, 2006, 10:42:00 pm

thanks,havent tried that yet.Never delt with 700r4's before this.Just bought the truck. Was told it didnt run and the trans was out.I put a battery in it and it fired right up,put it in reverse and it made that grinding noise.Drive seems to work fine. Havent drove it yet.

Title: Re: 700r4 problem
Post by: DnStClr on June 21, 2006, 08:52:00 am

It sounds like the synchronizer went out. Does it grind when you shift, or when you actually back up? One time I read where a guy changed his tranny fluid to cure a grinding tranny-  

Don St.Clair
Culleoka Tn