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Old 03-27-2005, 10:24 PM   #1
tphsmith
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what transmission is this

I have a 1981 chevy half on pickup with a 250 in line 6 and the transmission looks like a 350 from what the oil pan looks like with 13 bolts holding the pan on. there is a 2 prong wire connection to the drivers side of the tranny.what would that be for. is there a sight I can go to and compare the front shafts of transmissions that are like the 350 trannys.
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Old 03-27-2005, 10:34 PM   #2
79gmcc15
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could that be a th 350 c? lock up converter? Ive read a bit on there about them. and I know they came out in the 80's so that very could be a 350c tranny. just my guess.
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Old 03-27-2005, 10:37 PM   #3
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It's a TH350C. This is a 350 tranny with a lockup torque converter. That's what the wire is for, the lockup solenoid.
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Old 03-27-2005, 10:37 PM   #4
tphsmith
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what is a lock up converter? is this part of the 2 prong wire conection
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Its Gonna be a Great Day, I woke up this Morning.

72 SWB Fleetside freshly painted. putting a 94 LT1 with
700R4 tranny lowered 4 in the front 6 in the back

81 chevy half ton 350

89 Silverado 4x4 going ta church truck
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Old 03-28-2005, 12:14 AM   #5
79gmcc15
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well by what I read. the wires are hooked up to a swich that uses current to lock up the converter to give you a true 3rd, gear 1 to 1 ratio. and when you press on your break theres a swich there that shuts off the current to the converter... Ide try to do a search on there about the th350c to learn more. I am still new here and learning as I go. hope what I said was right. if not you should get the idea.
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Old 03-28-2005, 02:28 AM   #6
Hoods69BadBowTie
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Yeah, 350c. It got explained pretty well up above.
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Old 03-28-2005, 02:38 AM   #7
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im running a 350c but dont have it hooked up cause its not original
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