Getting ready to have a new drive shaft made for my AV8. The rear has a u-joint kit from Speedway to convert to open drive shaft. The yoke from the transmission is a bit smaller because its for the 39` Ford 3 speed transmission which is in the car. Is it going to matter if these joints are of different size. I`ll just need to buy 2 different size u-joints. Thanks.
One U joint does not "know" how big the other U joint is, it will be fine. many vehicles came from the factory with different size U joints in them..
Whew!!! Thought I would be getting into another sleepless night. Thank you ever so much. Time to press on.
Ah, good ol' bastard joints. If you ever walk into NAPA and need a u-joint with different legs, that's what they're called.
Yep ^^^ I keep a box of bastard joints in the garage. I have used it several times to get someone to where they are going.
I guess the trans has been modified as well. As in, remove the bell and just stick a slip yoke on??? This is something I've not done before, just curious at to what you did there. Tim
Important that the 2 joints are phased properly. See a shop manual or talk to a driveline specialist for info on this. Trans mainshaft & rear end must be on the same plane (parallel to each other) with suspension loaded. Slip yoke should be aprox. 1" from bottoming. Greg
Sorry for the lack of details. The trans is a 39` sedan and the slip yoke is from a pickup with open drive shaft(16 spline) and has the pickup trans mount with the speedo gear on top. The rear is a 40` Ford with the open drive shaft conversion kit from Speedway Motors. I set the angle between 2 and 3 degrees up. The trans is using a F1 cross member. I will do the 1" difference when I measure for the driveshaft length.
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