Since your th350 convertor has the longer LS1 style nose you will not need longer bolts.
I don`t think that any of the chains will have a dowel pin. I picked mine up from the dealer when I bought my motor (only had 1 in it just like yours, they stick in the trans all the time). IIRC it was less than $10.
thanks for the info. I'll go to the jy. if they dont give it to me I'll just use the one
__________________ Numbers don't Lie. Yet, numbers don't tell the truth..
You can buy dowel pins anywhere. I got a set of offset dowel pins to align my manual trans from Jegs.
I know the dowel pins are crucial with manual transmissions. There is an alignment procedure to make sure the trans shaft is centered properly. If not it can wear out the trans in short order.
I don't know if there is a similar procedure with auto transmissions.
No, you should have two. The other must have come out with the trans. You can steal one off another engine, however they really aren't absolutely necessary, they only make life easier.
actually dowel pins are very important. The crankshaft, torque converter and transmission input shaft all share a common center line. If one of those components is offse, then side-loading will happen. Usually this will cause damage to the bushing inside the pump, in the transmission.
I see this issue a lot. I do warranty failure analysis for a larger transmission re manufacturing company, and one of the things I see from time to time caused by missing dowel pin is bushing related problems, cracked flex plates.
The dowel pins are the same that are in any small block or big block chevy. The press into the block fairly tight.
__________________ 1967 Chevy Pickup, 5.3L 4L60E
1989 Chevy Caprice, 5.3L TH400, soon to get a turbocharger
actually dowel pins are very important. The crankshaft, torque converter and transmission input shaft all share a common center line. If one of those components is offse, then side-loading will happen. Usually this will cause damage to the bushing inside the pump, in the transmission.
I see this issue a lot. I do warranty failure analysis for a larger transmission re manufacturing company, and one of the things I see from time to time caused by missing dowel pin is bushing related problems, cracked flex plates.
The dowel pins are the same that are in any small block or big block chevy. The press into the block fairly tight.
I will try and find one tomorrow. can I just tap it into the block with a hammer?
__________________ Numbers don't Lie. Yet, numbers don't tell the truth..
Having 5 or 6 bolts in the bellhousing isn't enough to make certain that everything is alligned properly???????????????
Nope, if you removed the dowel pins and put the bolts in loosely you could still move the trans slightly as the bolts do not fit into the trans bellhousing snugly, there is some slop there.
Yes you can just tap the dowel pin in with a hammer. I usually do it with more hits but softer, I don`t like to just whale on it because it worries me that I could crack off that piece of the block. I feel better giving it 20 little taps in.
__________________ 85 El Camino SS black and silver, factory buckets.
5.3L/4l60E 3.73 posi 1980 Chevette 4.3L v6/4l60e www.fquick.com/G-Body
Quote:
Originally Posted by Rodder
"possible" is a relative term around here... anythingis possible. It's "possible" to put a whole K3500 4x4 dually truck rolling chassis under a brand new Mini body. Is it reasonable? No. Does it make sense? No. Is it possible? Yes.
No, you should have two. The other must have come out with the trans. You can steal one off another engine, however they really aren't absolutely necessary, they only make life easier.
Quote:
Originally Posted by busta9876
actually dowel pins are very important. The crankshaft, torque converter and transmission input shaft all share a common center line. If one of those components is offse, then side-loading will happen. Usually this will cause damage to the bushing inside the pump, in the transmission.
I see this issue a lot. I do warranty failure analysis for a larger transmission re manufacturing company, and one of the things I see from time to time caused by missing dowel pin is bushing related problems, cracked flex plates.
The dowel pins are the same that are in any small block or big block chevy. The press into the block fairly tight.
Idiot moment, forgot about the REAL reason the dowels were there. I've had them come out before but I always put them back.
__________________ More Gen III conversions brewing...
How'd I know this stuff? 'sperience, son.
'sperience (aka experience) - learning from your successes AND failures.
