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Old 07-28-2013, 04:44 PM   #1
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Joe66's Avatar
Ford Super Duty Owner
Join Date: Jul 2013
Posts: 8
Unhappy Need Ford E450Sd Driveshafts

I have a 30 Foot Four Winds Majestic Class-C built on a Ford E450SD chassis. The drive shafts on this model are three pieces: A long piece off the transmission, then a short center piece and a long piece to the rear axle. There are two hanger supports at the rear of front section and front of rear section. All three pieces are severely rusted and I have a severe drive line vibration at all road speeds. There is a data plate on the rear section with a Spicer part number and serial number but none of the Spicer online data bases recognize the part number. Since this model was built as a cut-away, Ford does not recognize any of the drive shaft parts and when I query by VIN the Ford online parts catalog returned nothing. The wheelbase on this Class-C is 213 inches and the longest E450SD wheelbase Ford sold was 176 inches, so this three piece drive shaft arrangement must be a custom Four Winds (Thor) creation.

I need to replace all three drive shaft sections or have them custom made ($$ ouch). Any help would be greatly appreciated.

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Old 07-28-2013, 06:59 PM   #2
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Forest River Owners Club
Ford Super Duty Owner
Join Date: Apr 2011
Posts: 859
Hi Joe:

I'm thinking your drive shafts are not the problem.
Have you thought about replacing the U joints and the two driveshaft supports? I can't see how rust would cause vibration. But I can be wrong about that.

2010 Coachmen Freelander 30QB E450 V10
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Old 07-28-2013, 06:59 PM   #3
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My first call Monday would be to a Thor dealer. be sure to get the part number from them to do an online search with.
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Old 07-30-2013, 06:51 PM   #4
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Location: South West Michigan
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Mine was real rusty and blew a weight. A little oval shaped somewhat less rusty spot where the weight was. Maybe 1 1/2" long. Took the whole shaft off and to a heavy truck place to balance / repair. took it in Thursday evening and picked it up on the way home Monday.

Everything new
mid bearing
Fresh paint and balance $530 I think somewhere about

The old shaft was too rusty and the mid bearing was shot the previous owners thought it was normal viberation

Didn't think it was too bad

I Think it's cheap steel in the shaft and a lot of sitting around
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