OBS Dually to SRW Conversion
Fleet Owner
Joined: Oct 2005
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From: Kentucky
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Senior User
Joined: Oct 2015
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There will be don't worry! Gotta find a good truck to start with first and at the right price is all! Since creating this post I actually stumbled upon a good fit truck for what I want to do with it but it's already SRW crew cab long bed 2wd and in the price range that I was looking to spend on a dually and have to do all that extra work for the back half so just gotta hope it doesn't fall through or get sold before I can check it out!
Fleet Mechanic
Joined: Nov 2016
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If your going to build your own four link front then you wouldn' have to get and 05 front. Get an obs axle and then you get the better wheel bearings and can keep 8x6.5 pattern. Just get the factory frame spring buckets if you want
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Fleet Owner
Joined: May 2009
Posts: 21,437
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From: Gilbert, PA
Yes, completely DUMB idea to get 2 different bolt pattern wheels.
Then come in the facts that the 05+ axles have different offset than the 04 and older ford axles.
As for the 10.25 being stronger than the 10.5, wrong
Then come in the facts that the 05+ axles have different offset than the 04 and older ford axles.
As for the 10.25 being stronger than the 10.5, wrong
Fleet Mechanic
Joined: Nov 2016
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I understand wanting to do it in a weekend but the axle could be prepped and brackets welded on before you take your truck apart. Frame mounts for the links could be installed with all the factory radius arm brackets still on the truck. If it's 2wd drive truck then the frame coil buckets could be saved and all that would need to be fabricated would be the track bar mount on the frame side. This is how I see it could be done, I'm just not a fan of superduty hubs and bolt patterns
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Senior User
Joined: Oct 2015
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Well would the yokes and leaf/shock mounts be the same on the 05+ axles as the OBS 10.25's? Or am I going to have to get an adapter for the obs drive shaft to connect to the 05+ and grind off all the stock leaf perches/shock mounts and weld them to fit?
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Senior User
Joined: Oct 2015
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I understand wanting to do it in a weekend but the axle could be prepped and brackets welded on before you take your truck apart. Frame mounts for the links could be installed with all the factory radius arm brackets still on the truck. If it's 2wd drive truck then the frame coil buckets could be saved and all that would need to be fabricated would be the track bar mount on the frame side. This is how I see it could be done, I'm just not a fan of superduty hubs and bolt patterns
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Fleet Owner
Joined: May 2009
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From: Gilbert, PA
Leaf spring perches are the same
As for the driveshaft, you can get a cross joint
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Senior User
Joined: Oct 2015
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Looks like the shock mounts are different unfortunately but isn't a huge to do for me to make and weld up new ones. I'll probably swap the 05' Rear under but most likely going to ride around on the 10.25 still for a few weekends then do a hydro boost to it at the same time..Truck may look a little goofy for a little but just don't see it all getting done in one weekend.
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Senior User
Joined: Oct 2015
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Yeah no I appreciate it! The more input on trying to complete such a task like this the better! I have seen the wheel bearing issues that seam to plague these newer dana 60's and when time comes when the bearing do go on the axle I put in I'll upgrade to the dynatrak free spin kit to resolve the weak link of those axles.
More Turbo
Joined: Apr 2014
Posts: 687
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I seriously doubt you are going to do a 4 link front suspension on the stock frame and have it driving monday morning.
More Turbo
Joined: Apr 2014
Posts: 687
Likes: 20
Yeah no I appreciate it! The more input on trying to complete such a task like this the better! I have seen the wheel bearing issues that seam to plague these newer dana 60's and when time comes when the bearing do go on the axle I put in I'll upgrade to the dynatrak free spin kit to resolve the weak link of those axles.
The unit bearing on the 05+ SD 60's substantiality stronger than the 99-04 and arguably better than hub/bearing set up found on OBS axles.
Honestly you sound like you don't know what you are talking about and don't know where you are going with this or how to get there...
i ain't rite
Joined: Mar 2005
Posts: 65,591
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From: Marlboro Mental Hospital.
i agree. the hub bearing assembly is a better setup.
my 02 now has 196,000 miles on it and the front bearing assemblies are still the ones ford put in when they built the truck.
my 88 D-60 never got more than about 125,000 miles out of front wheel bearings. but that truck also always had at least 37 inch tires on it.
my 02 now has 196,000 miles on it and the front bearing assemblies are still the ones ford put in when they built the truck.
my 88 D-60 never got more than about 125,000 miles out of front wheel bearings. but that truck also always had at least 37 inch tires on it.