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Old 10-20-2014, 10:50 AM   #5
Hawks
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Join Date: Dec 2011
Location: Floyd va
Posts: 80
Re: 3 Speed to 4 Speed Swap Questions

Quote:
Originally Posted by 66Submarine View Post
The SM420 truck 4 speed (and others like the SM465, NP435, etc.) does not have the slip yoke on the end of the driveshaft that goes into the trans, so the slip joint has to be in the driveshaft itself.
Yep, has to have a slip yoke to make up for distance when the springs are compressed with a heavy load it shortens the driveshaft distance, I'm just not sure where the carrier bearing mounts with the x frame,
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