I am not sure which one is the best one for you, I think its how you plan on using your vehicle. There are other companies that offer shift kits like B&M, Superior, and Sonnax. I have asked before on this forum which shift kit to use and the transgo kit seems to be a poplar choice. If you are needing a shift kit for your TH350C than the SK350 transgo kit will work for you. I’ll try to get some more pics of the internals to post just in case this thread helps someone else in the future.Īre all transgo kits going to be the same?they are pretty cheap on eBay like 30$ I would have never guessed that a shift kit was in place. It’s ok if the spring was missing in the accumulator. This transmission likes its bushings replaced along with the thrust washers. Buy a master kit with steels, shift kit by transgo, intermediate band, and filter. The TH350C will have the pilot type of input shaft. The TH350C torque converter is different than the t350. You can call it sludge or whatever but it’s the TCC coming a part The black stuff in the pan is pieces off the torque converter clutch. Replace the TC and make sure you clean out the cooler and the cooler lines real good. In the pic will show you drill requirements along with checkball locations. I have provided a pic of the TH350C transmission separator plate.
#Chevy turbo 350 transmission troubleshooting install
Transgo shift kit will instruct you to install 5 checkballs for the TH350C transmission which all 5 checkballs go into the case of the transmission. Is this th350 toast? Is a break in process for a th350 that has sat? There are 0 leaks, I’m just confused as to why it able to go in gear on second and then 0 gears the next. After going through gears once and back to park, I get no gears again while on jack stands. Popped it in reverse and bam, wheels turning hard through all drives as well. Repeated the rear on stands process with fresh fluid. I started engine with transmission cooler line off and trust me, it’s pumping, made a mess all over floor. Hopped back in and put it in reverse and go nothing. When appoint brake I put it in park and left it running, checked fluid and it was perfect. I had strong reverse, strong drive, d1, and d2. This time I put the rear end on jack stands. Drained pan and pulled filter and there was some sludge, I assume from sitting for a while, put new filter on and repeated the fill shifting through gears. Drove around the block and no gears at stop sign.
Tried to drive and it moved forward only with a bit of revs and reverse as well. And it was even after shifting thru all gears. Started her up again, poured 4 qts of fluid in and let her run for about 5 minutes and kept checking fluid to make sure it was within the hot crosshatches. Saw a couple of leaks with old pan and Speedo cable so I changed pan, filter, orings for bullet, and cooler. The trans had been sitting for a while but connected to motor.ġ.
It seems to get better the more I keep messing with it but then it just goes to no gears, no reverse, no drive,d1, or d2. The problem is that the th350 is not always engaging properly or may take a couple of seconds to engage. I had it trailered to the house so that I could begin working on it and getting it running. The owner that I purchased from swore up and down that the trans was good and he seemed pretty legit. So long story short, I recently purchased a 71 c10 305 with a th350. Good morning, First time poster and been lurking for about a month now.
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