Proper vacumn, the trans will shift very late. The modulator is bad and it is letting transįluid be sucked up into the intake manifold. You pull the rubber hose off of this left end, If you get a drop of transmission fluid when In the lower gears for a few extra miles per hour. Or carrying a heavy load, keeping the transmission Slightly later shifts are popular for when towing To make it upshift a little later (higher mph),

Pointing towards the rear of the vehicle. Other things sometimes lost during the process!) However, I keep on-hand small clips and several (kits are available locally quick I do not sell parts, obtain rebuild kit and any needed hard-parts.steam-clean case, rear housing, and pan.I will help with the real 350s of the years above,īut NOT with the weak '350-C' models that followed. I can quickly help you or teach you this knowledge. It is far easier than most engine guys think it is. The San Fernando Valley or the Los Angeles area.

Your bench (rebuilding) job, at your location in I am a retired rebuilder and can assist you with The number-one choice in GM-powered hotrods.Ĭan teach you. Used in cars, vans, trucks, and motorhomes. Quick-print the whole thing for reference) (shown as one very long page to allow you to Not proper intake-manifold vacumn to modulator The direct drum and the forward drum from an 8-cylinder model have shorter pistons in them, allowing an extra clutch plate each, spreading the wear over more clutch material, making it more heavy-duty. 'What's the difference between a 6-cylinderĮngine turbo 350 and an 8-cylinder engine turbo 350?' Otherwise, it is usually best to replace the torque converter with a new one or with a properly rebuilt one. The gear you feel should turn only in one direction, not both.Īnd there is no clutch material or anything in the pan, maybe you can use the old converter. Inspect for wear where it has been spinning in the pump bushing. The alignment pin holes and the lower bolt are the same.ĭone by two metal pins sticking out of the rear of the engine block the 6 bolts hold the trans straight against the engine block.Įasier when the rear of the trans is hanging down and then using aĮventually, that crud will be pumped out intoĬheck the shiny chrome part of it that plugs into the front of the transmission. You can see both the valley and peak designs (below). It is aluminum and is held to the rear of the transmission caseġ) The Buick, Oldsmobile, Pontiac, and Cadillac engine-to-transmissionīolt pattern is easily identified by the 'ears' at the top and by the valleyĬase has both patterns built in, and fits any General Motors of those years.

Th 350 transmission