Drive shaft length
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Mountain Pass
Joined: May 2013
Posts: 248
Likes: 23
From: Southwestern Ontario
Drive shaft length
A little background, we have exchanged the original rear axle in our 55 f350 with a Dana 60 from a 68 f250 and we have shortened the driveshaft. Here is where we need the help, I didn’t check the amount of movement allowed between the hanger bearing and the rear driveshaft slip yolk.
With the shortened driveshaft we have about 1/2 inch of space but don’t know if there should be more of an allowance. If you can help it will be greatly appreciated.
With the shortened driveshaft we have about 1/2 inch of space but don’t know if there should be more of an allowance. If you can help it will be greatly appreciated.
Hotshot
Joined: Oct 2009
Posts: 16,153
Likes: 4,753
From: Burbank, WA
With a single piece driveshaft, the rule of thumb I've always been told, and have used, is to pull the slip yoke 1" out from bottom inside the transmission and build the driveshaft from that. I would assume that same amount of movement would be recommended at the slip yoke no matter if it's at the trans or the center carrier bearing. With only a half inch of adjustment, I would be concerned about bottoming out and damage with axle/suspension movement. I don't have a spec for that, and maybe others will have differing opinions. Have you contacted your driveshaft building company and asked for their recommendation or thoughts?
Thread Starter
|
Mountain Pass
Joined: May 2013
Posts: 248
Likes: 23
From: Southwestern Ontario
With a single piece driveshaft, the rule of thumb I've always been told, and have used, is to pull the slip yoke 1" out from bottom inside the transmission and build the driveshaft from that. I would assume that same amount of movement would be recommended at the slip yoke no matter if it's at the trans or the center carrier bearing. With only a half inch of adjustment, I would be concerned about bottoming out and damage with axle/suspension movement. I don't have a spec for that, and maybe others will have differing opinions. Have you contacted your driveshaft building company and asked for their recommendation or thoughts?
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