2 speed TH350?

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08-19-2009, 09:30 AM
J0386

2 speed TH350?

like a few months ago the trans in my truck blew up.. so i went to the local junkyard and pulled one out of a, I think a 70s-80s el camino and to my luck it worked good in my truck even without changing the filter.... only thing is that it only has a 1st and 2nd gear but dosent seem to have a 3rd, it dosent slip and shifts real smooth and even when i get down on it, it shifts fine i was just wondering could it be the rearend in my truck cuse the body was a 6cyl manual dunno but it looks like a th350 and thought it was kinda strange... and was wondering if any of u could tell me whats up with it??
08-19-2009, 10:21 AM
nitrowarrior

Can you manually select all three grears?
08-19-2009, 10:44 AM
J0386

no it only has the 2 manual gears.. and another strange thing is if i put it in the first gear manualy it still shifts when driving..
08-19-2009, 11:35 AM
65ny

1 Attachment(s)

Which one of these pans does yours resemble? If it looks like #1, you have a powerglide, if it looks like # 3, you truly have a TH350 and you should probably check your linkage adjustment. What RPM range does it cruise in?

Your rear end won't make a difference in how many times you shift. (it could, in theory make your shift points sooner though) You probably have a fairly low gear if your truck was once a 6cyl/stick shift.
08-19-2009, 07:01 PM
iceburgh

sounds like a PG but not in a car from the late 70; or 80's
08-20-2009, 03:18 AM
techinspector1

Quote:

Originally Posted by iceburgh

sounds like a PG but not in a car from the late 70; or 80's

Could have been swapped out by someone else before the car hit the boneyard.
08-20-2009, 07:50 AM
chevydrivin

When I was 16 I built my first T350 in my grandmas 77 truck. The first gear clutchs were completly gone, so it did not have a first gear. The truck started out in second gear and then shifted into drive. When driving it, I thought it might be a powerglide until I took it apart and saw the first gear package had no clutches in it.
08-20-2009, 03:48 PM
J0386

could it be the kickdown cable maybe to much slack or not enuff? and dont think its a pg looks nothing like a pg looks just like the one that blew up the first time. but the first one had all 3 gears.. hell dunno whats up i was just glad to get a working trans from a junkyard for only $60 lol
08-20-2009, 03:57 PM
pro70z28

The third gear is a plug in module you have to buy separately. :LOL::LOL:

I'm kidding. I'm kidding. :whacked:
08-21-2009, 07:42 AM
65ny

Quote:

Originally Posted by J0386

could it be the kickdown cable maybe to much slack or not enuff? and dont think its a pg looks nothing like a pg looks just like the one that blew up the first time. but the first one had all 3 gears.. hell dunno whats up i was just glad to get a working trans from a junkyard for only $60 lol

Disconnect the kickdown and see if that makes a difference.
I know a real good transmission guy in your area, he re-did mine for a very reasonable price. Let me know if you want his contact information, and I'll pm it to you.