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| | | | Joined: Oct 2009 Posts: 86 Shop Shark | | Shop Shark Joined: Oct 2009 Posts: 86 | hey guys, i'm considering using the sm465 i got with my 292,what sort of drive shaft do i need? does it need to be a 2 pce telescoping type with a yoke on the tranny end? my tranny has a fixed yoke/tailshaft so i'm wondering what i can use to make it work. | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | What year truck? What size truck? What wheelbase? | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | If the transmission has a fixed yoke then you absolutely need a slip joint somewhere in the shaft, usually toward the front.
Model/length of truck will help determine if you need a two piece driveshaft or if the truck is short enough to use a one piece.
Grigg | | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | If you have enough wheel base that you need to use a 2 piece drive shaft, you can use a fixed shaft between the transmission and the center bearing. You will need a slip joint in the rear drive shaft because it is the rear end that moves. If you can get away with one shaft, the slip joint has to be right behind the transmission. The distance between the companion flange on the transmission and the companion flange is the determining factor as to whether you can use a single shaft. | | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Depending on the tube size you can use for your shaft think of 55" overall length (crt/ctr) as the maximum for a gas engine. Maybe a bit longer but this is a good number to start with. | | | | | Joined: Oct 2009 Posts: 86 Shop Shark | | Shop Shark Joined: Oct 2009 Posts: 86 | the truck is a 50'1/2 ton shortbox with adjustable airide and a 4 link with a ford 8.8"diff. the tranny is out of a 68'c10 so maybe i need the same drive shaft with a ford yoke.anyone else do something similar?
Last edited by tyler h; 04/13/2010 1:00 AM.
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | You are going to have to get a drive shaft built with a slip joint. If its a swb pickup, you can get by with a single Drive shaft. I am assuming the 8.8 came out of a 56 or earlier. 57 came out with the 9". Some of them used Spicer 1310 and some used a Mechanics joint. If you have the Ford drive shaft, measure from the middle of the companion flange on the rear to the middle of the companion flange on the rear. You might want to take the companion flange off the transmission and take it to a drife shaft shop. Tell them what you are doing and have them build them a shaft with a slip joint. | | |
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