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Old 11-27-2011, 09:51 PM   #1
rs72z
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Dually rear swap question?

Anyone know how late of a gm dually rear will work in our trucks? I'm not worried about changing hangers either.
I found a good deal on a 98 rear.
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Old 11-27-2011, 11:20 PM   #2
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Re: Dually rear swap question?

98 wont work I already been that route unless you change spring pad location and probally other mods.
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Old 11-27-2011, 11:23 PM   #3
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Re: Dually rear swap question?

I am not worried about changing spring pads. probably going to do a flip. Width is what i need to know about.
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Old 11-28-2011, 12:16 AM   #4
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Re: Dually rear swap question?

You do not say whether you are doing a wide track dually pickup setup or using the narrower cab and chassis rear end.

Either way you will have to modify hangers or perches unless you already have a 30 series truck

I would look for a 73-87(91 in Crewcab)rear end

If you use the dually pickup one you get a rear sway bar as well

There are lots around for not much money....you can usually find a whole truck for 500.00

the 98 can be made to fit but wheel studs and brake lines are metric
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Old 11-28-2011, 12:19 AM   #5
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Re: Dually rear swap question?

Standard dually rear not a c&c.
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Old 11-28-2011, 01:51 AM   #6
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Re: Dually rear swap question?

I have wondered this as well because i want to upgrade to disc brakes since no one makes a disc brake conversion for the dually 14 bolts... (to my knowledge anyways)
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Old 11-28-2011, 02:09 AM   #7
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Re: Dually rear swap question?

off the top of my head if I remember right the c&c rear is 48" from backing plate to backing plate and the the std rear is 52 from bp to bp I'll put a tap to both in the morning and I think where you get the different spring perch offsets is the 1/2t spring hangers on the frame are nerrower

and as far as doing a diskbrake conver there is a wright up on pirate4x4 on whats needed and how to do it on the cheep
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Old 11-28-2011, 08:47 AM   #8
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Re: Dually rear swap question?

Quote:
Originally Posted by pig rig View Post
off the top of my head if I remember right the c&c rear is 48" from backing plate to backing plate and the the std rear is 52 from bp to bp I'll put a tap to both in the morning and I think where you get the different spring perch offsets is the 1/2t spring hangers on the frame are nerrower

and as far as doing a diskbrake conver there is a wright up on pirate4x4 on whats needed and how to do it on the cheep
If possible can you measure wms to wms.
Thanks
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