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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: trucknut18 on April 07, 2009, 10:00:50 am

Title: th-350 trans help needed
Post by: trucknut18 on April 07, 2009, 10:00:50 am

when me, my stepdad, and my stepdads brother rebuilt my trans,,we used a b&m kit with all parts needed, every clutch disk and spacer was put in corectly, also we put a b&m shift kit in it, after i got the truck back together i put fluid in it and tryed it out,,,,,,,i kept takin it through all the gears, checkin the fluid every 5 min or so, the problem is it still dont want to move,,when i put it into drive,2, and 1,,,u feel it kick slightly and then u rev the motor and the truck just sits there, its full but not overfull on fluid, im kinda thinkin there is a ball stuck, or the plate for the shift kit was drilled wrong,,,,,,,,,,any ideas???thanks for the time guys.

Title: Re: th-350 trans help needed
Post by: VileZambonie on April 07, 2009, 10:21:15 am

First thing to do is a pressure test. Do you have access to a trans oil pressure gauge?

Title: Re: th-350 trans help needed
Post by: trucknut18 on April 10, 2009, 11:02:08 am

no unfortunatly i dont, i coould try and get it from some friends, and maby from autozone tool rental,,i have some friends at a dealership, if i do get this tool wht do i do with it? hook it into the coolerlines? how much pressure should it have, and if i dont hve enough pressure does that mean i have a ball stuck or something? thanks for the help and time guys

Title: Re: th-350 trans help needed
Post by: joesgarage71 on April 10, 2009, 03:00:46 pm

 Seems as thou your not getting pressure to apply the clutches. did yall replace the front pump? something aint right. did the valves in the valve body check out ok and are in right? Use a good torque converter?

Title: Re: th-350 trans help needed
Post by: VileZambonie on April 10, 2009, 08:53:52 pm

You will see a pressure tap on the side of the trans. I believe it's 1/8" pipe thread. Screw it into there and report back your pressures in each gear range at idle. In park report your pressure at 2000 RPM.

Title: i got the trans workin
Post by: trucknut18 on April 23, 2009, 09:47:52 am

well me and my uncle got it runnin and workin almost really good,,,i guess there was something stuck or something, we started it up gunned the engine, went through the gears a couple times and it started to move, plus it dont help when the right front wheel was locked up,,,,but the trans is workin for now,,well see if it shifts and stuff when we get it on the road