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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Feb 2001 Posts: 40 Member | | Member Joined: Feb 2001 Posts: 40 | I finnally got got all of my ducks in a row and fired up my truck , filled the tranny (th350), and lowered the whole shebange back onto the ground . The tranny doesn't want to go forward very good , does better in reverse but still have to rev the motor more than usual. The fluid level is up alright , does anyone have any tricks on getting the tranny to do its job or is a rebuild in the near future ? I dont know anything of this trans. history other than its been sitting arond for a bit . | | | | | Joined: Mar 2000 Posts: 1,177 Red dot, center of chest ... | | Red dot, center of chest ... Joined: Mar 2000 Posts: 1,177 | If it's been sittin' around for a bit, the seals are probably dried up. You might try some additives to soften the seals and clean up the gunk, but I'll bet it's a good candidate for a rebuild. | | | | | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Check the fluid level when the engine is running.It may be over-full with fluid.
.....Just a thought,,,is the park brake on ????
do the wheels spin freely??
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
| | | | | Joined: Feb 2001 Posts: 40 Member | | Member Joined: Feb 2001 Posts: 40 | With the truck on jackstands, I put enough fluid in to see if it would spin the tires , just to see if it worked or not. It did so I removed the pan and chaged the filter , installed a new chrome deep pan that I'd gotten off of E-bay a while back . New fluid again , checked it (not warmed up) and the level was ok. The next day I walked in the garage and tranny fluid was all over the floor ! over full ? so I got the level down and retightened the pan bolts, Got the temp up and checked the level -got it up too proper level . Thats when I reallized it didn't really want to go forward much -it would go back into the shop under its own power. My nephew's buddy says he would rebuild it for cheap , he does trannys at a dealership in St.Louis . Plus - his grandpa used to own my truck and his dad learned how to drive in it ! Kinda Cool ! I guess I will pick up a rebuild kit at NAPA , flush out the converter and let him tear into it . | | | | | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | If you want to firm up the shift to second gear, put a 2&5.8 length of broom handle in place of the accumulator spring!  .I have been working my 3/4 4x4 very hard for the last 6 years and not a problem one.I used a stage 2 shift kit.
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
| | | | | Joined: Apr 2000 Posts: 247 Member | | Member Joined: Apr 2000 Posts: 247 | You probably just got air in the fluid lines and/or in the torque convertor. You did put in the spacer required for the deeper sump, didn't you? It just spaces the pump filter down a little lower into the new pan so that it will be able to pick up fluid. Did you put a little bit of blue locktite on the threads holding the filter on so the bolts wouldn't back out?
Automatic transmissions don't go bad just because you swapped the ATF oil pan, and it sat for a little bit. | | |
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