Drive Line Question

MYRIDE · April 28, 2004, 04:31:19 PM

Here's my quandry, crawled under the coupe today to measure for my new drive shaft. While I was measuring the space between "locator Tabs on my yoke (trans) noticed that it was a "bolt-on" style (TH 400). This brings me to my question. How will the drivetrain have any kind of "flex" to deal with rough roads etc if there is no "slippage" in my trans yoke? Is there something I'm missing here or should the system work as it should?
Thanks for the imput, K Dalton

Dirk35 · April 28, 2004, 06:09:47 PM

I had a similar situation on my 1949 F1 PU. The C6 tranny I used had a u-joint bolt cup thingy (thats the technical term, correct?) (think no way for it to slip in and out) and the rear end had the same thing. I ended up using a drive shaft that had a slip yoke at a carrier bearing from a 1976 Ford F100 PU.

Does all that make sense?

I dont know what all Chevy makes, but if they dont have anthing similar, you could always use a Ford Driveshaft and get the adapter u-joints.

SKR8PN · April 28, 2004, 06:24:53 PM

Sounds like you will need to have a driveshaft made with a slip yoke installed in one end. When you install it in your vehicle,be sure you have the u-joints in phase............

MYRIDE · April 28, 2004, 06:45:23 PM

Quote from: "SKR8PN"Sounds like you will need to have a driveshaft made with a slip yoke installed in one end. When you install it in your vehicle,be sure you have the u-joints in phase............

Starting to sound that way, is this what other consider "colapsable Drive Shaft"?
Thanks

enjenjo · April 29, 2004, 12:20:25 AM

I think you will find your trans was originally installed in a Corvette, or a one ton truck. They used a bolted on yoke. The Vette driveshaft didn't move of course, and the truck had the slip joint built into the shaft.

If you look at the end of the yoke, you will find a cap screw there, 9/16" head I believe. Remove the cap screw, and the yoke will come off. Now you can use a conventional slip yoke on a normal driveshaft. The only apparent difference in the tail shaft, is the hole drilled and tapped for the bolt.

I believe Ford used the same setup on one ton trucks.

MYRIDE · April 29, 2004, 01:35:55 AM

Thanks fot the input gentlemen! This will go along ways in correcting the problem indeed. Let you know how it turns out. I have this one problem to iron out then safety check then........hit the road!
K

Dirk35 · April 29, 2004, 01:36:12 PM

Can someone post soem schooling on u-joint phasing again? I had it on my computer somewhere, but cannot find it.

Fat Cat · April 29, 2004, 02:33:51 PM

Quote from: "Dirk35"Can someone post soem schooling on u-joint phasing again? I had it on my computer somewhere, but cannot find it.

Will this work?

http://www.roddingroundtable.com/tech/articles/driveline.html