I did an hour of searching, found some info here and there, but not what I was looking for. Most answers consisted of, 'remove the 4 bolts. Ok, fair, but I have 3 bolts and 1 nut (no nut jokes please) and I'm stuck on how to get this off. I am mechanically inclined as I built a camaro from the ground up including the engine. I just am not sure if even a crows foot would fit on this nut in the space.

The trans in a TH350, non-lockup. I put in the transgo 350-3 manual kit and it appears the previous owner of the transmission broke the housing for the speedo gear. It is not the bullet type housing so I need to take the tail shaft off to see how many teeth are on the gear so that I order the right housing.

Thanks in advance guys, its much appreciated!

bottom of trans, can see the nut there where I can't turn the 9/16" wrench to save my life.



another shot of the bottom of trans showing the nut.



Top bolt that appears to not be able to come out until the bottom nut pictured above comes off.



transmission is going in this car

 

did u try with a plier?

 

Just figured it out, took a bit of dextarity. I showed a transmission shop, and they were like, 'WTF?' never seen that before. I was able to some how get the bolt out for the driven gear housing, move the housing down out of the way just enough to get a wrench over the nut and back it off. Glad I took the rear tail housing of, found the drive gear was mis-aligned, with a couple teeth chipped, and the driven gear (speedo gear) was 41 teeth. I figured with 3.23 gears and a 25.6 tire I need a 45-46 tooth gear. Instead decided to go with a 17 tooth drive gear and a 43 tooth driven gear. Thank you for the reply though!