So as I noted in another post we've got the engine and tranny separated and serviced the tranny before we attach it to the 327. But I noticed that it looks like this is not a GM built TH350 as there is no GM markings on the case at all. In fact, the only markings are on the top of the bellhousing cover. The mark is a large Z with a J on its back underneath it.
So as I noted in another post we've got the engine and tranny separated and serviced the tranny before we attach it to the 327. But I noticed that it looks like this is not a GM built TH350 as there is no GM markings on the case at all. In fact, the only markings are on the top of the bellhousing cover. The mark is a large Z with a J on its back underneath it.
I got a picture of the mark on the trans I was wondering about..
Weird for sure... The line through the Z is to make sure someone does not think its a two.. Thats an old military way of doing the Z and the 2. and the line under it is making sure its not read as a N I guess.. What were the numbers on it and do you have a picture of it all and maybe the pump on it
View the transmission. The GM ST-300 automatic has a one-piece aluminum case and bell housing. The cast aluminum casing has a smooth texture, unlike the rough surface of a cast-iron transmission housings.
2
Count the bolts attaching the oil pan to the bottom of the ST-300. The oil pan, located at the bottom of the transmission, has 14 bolts holding it to the transmission case.
3
Notice the shape of the ST-300 transmission oil pan. the pan has a square shape, with the driver's-side rear corner on an angle and an extension at the passenger's-side rear corner
