Discussion in 'Manual Transmission & Clutch Discussions' started by hemi446, Feb 4, 2018.
Where did you get the transmission tunnel?
The tunnel is from American Powertrain it fit my floor for the most part. One thing is they don’t have any type of template to help with the layout. So i measured back from the bell housing to where the shifter was and started with about a 8-9” cut down the middle to get started. I had replace all of the floors when I started on the car back in 1991 so they may have not been exactly like the factory but they fit ok. I did have to trim the drivers side front corner a little and I did fold the lower edge in to get it as close to the floor as I could.
Did they sell you the tunnel piece separately?
Yes I ordered the tunnel, cross member , pilot bearing and tailshaft assembly from them. I have also called them to ask questions and never had a bad time everyone was helpful
What was the price of the tunnel and cross member from American Powertrain?
I don't remember I bought it awhile ago. But let me look for my invoice. I bought the tunnel, cross member, extension housing to convert the transmission from a E-body to an A-body, I also got the transmission mount, speedometer cable, and speedometer gear.
So today I installed some extensions on to the back of the original console brackets. And welded the original front console bracket back on to the top of the new tunnel. The next step is remove the transmission and bellhousing so I can undercoat the tunnel and install the clutch and transmission for the last time.
So I haven’t posted in a little while but the transmission is in with the clutch and the exhaust is back on. I did have a problem the Dupl-Color under coat after three day the stuff wasn’t dry and I touched it with my finger and it came right off. ( I’ll post a picture of the can for the stuff not to use it was shit and it came out brown not black ) So I scraped it off with a scraper and used some seem sealer around the edges and re-under coated it and it was fine. When I put the shifter back down in the transmission the transmission has too hang down and you drop the shifter in through the top and put the bolts in from the bottom. The back two bolts are tightened with a wrench from the bottom and the other four bolts I got from the top with a quarter inch swivel socket from the top. I used #2 Permatex for the sealer on the top if you use silicone sealer you will never be able to get the shifter off if you needed to. With the shifter in I just raised the transmission up into place and installed the cross member torqued everything to spec’s I then installed the clutch master cylinder to the fire wall the problem here is there is a raised rib right where the two left side bolts go. So I made a small spacer to move the master cylinder back about a quarter inch. There should be enough adjustment in the master cylinder rod to make up for this and it makes getting the hydraulic line started a little easier. If you install the hydraulic line with the bleeder facing down the line has a kink in it so I’m going to switch it to face up to make the line a smoother flow. I also made a ground wire from the floor to the transmission and used the brown wire from the starter relay to go to the switch at the back of the transmission so the car will only crank in neutral, the speedometer cable is in as will that gives me some place to hold the brown wire up off the exhaust Since I’m home sick right now I don’t know when I’ll get back to it I still need to make a bracket for the fluid reservoir that will clear the voltage regulator and not lay over the inner fender in case it leaks
Here are some more pictures the picture of the straight shifter is not the one I’m using I have a different shift handle that tilts back some so on acceleration you don’t have to lean forward to reach the shifter from my drag race years I know that will not work you will pull the shifter out of gear if you have to reach forward and your back is off the seat And yes I did us a GM weather pac connector on the brown wire they seal real will and I have them in stock
Thank you so much for the pictures. I am putting a TR6060 in my 72 Demon behind a gen3 Hemi. I just got the motor where I could hang it in the air this weekend. I had to seperate it from the wire harness. Anyway I am looking to start slashing floor and firewall next. Your pictures are great thanks so much.
It’s good that they help. I just started putting the carpet and seat back in. More pictures as soon s I have them
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