- Year
- 1970
- Location
- United States
I'm looking for a 4-speed transmission crossmember for a swap from a 3-speed. Thanks
Wanted 4-speed transmission crossmember 1970
- Thread starter Road Hog
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
What is a transmission crossmember?
- Thread starter
- #3
Good morning. I was using AI so maybe there isn't one. It had mentioned a transmission crossmember which I assume braces the transmission on the frame. The cruiser I'm working on had the tranny and TC removed. My other cruiser has a V8 adaptor with a cross brace that bolts to the power take off output shaft and then bolts to the frame. It's been my experience that Co-pilot AI lacks a lot of info and is generous in its misinformation. It mentioned two types, a V-shaped brace for 3-speeds and a flat pan w/ a u-shape type for 4-speed. I'd be happy if I didn't need one. It also has said that the 3-speed was part of the frame so no part number. It also said that I would need to access one from 1975 on or that perhaps a universal crossmember could be located
- Thread starter
- #4
I was told I'd need one from 1975-1980
I think I'd fire your AI. On a stock 55 the bell housing mounts hold up the tranny and TC. Advance Adapters (AA) makes a "propeller" type of crossmember that bolts to the rear of the TC and the frame, I've got one because of the extra length of my drivetrain due to the doubler but you won't need one for just a 4 speed. 60 series might use a crossmember, I don't know.
- Thread starter
- #6
That's the problem with co-pilot; it leads you down a primrose path and when you point out a mistake it agrees and makes another string of questionable steps. Good to know it was a hallucination. Thanks for the heads up. It currently has me looking for a grounding screw for the right turn signal somewhere behind the instrument panel (I've chased it to there at least). I'm still working through all the electrical connecters, so I had to tear it down anyway.
I'm pretty sure I have that same adaptor on the other cruiser with a V-8 adaptor bellhousing (283). It's one thing to tear it down and put it back together and another thing to try and build one that's missing parts, and another thing to do it after 20 years. It all started with that damn rear window motor gear. . .
I wonder if it meant a skid plate? Your best bet is asking questions in here and getting an FSM.
- Thread starter
- #8
So far, AI has led me to a couple of dead ends, but it is very confident, until you point out that it's wrong. I have a Haynes I've been using and I've gone to the FSN, but it doesn't cover swaps. U-tube's pretty limited. When I parked the rigs there weren't too many resources. This site has been a gold mine. I'm working on cleaning up the electrical, tearing down the shifter assembly getting ready to send the transmission/TC away to rehab. I'll be looking for the skid plate down the road. I'm just trying to get it mechanically sound. It's going to be a long haul. . .