75 c20 dually rear end swap

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brooks7810

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Arizona
First Name
Michael
Truck Year
1975
Truck Model
C20
Engine Size
454
I am looking at swapping a dually rear end into my 75 c20, it this something that it easily done?, I am not planning of towing or hauling with the truck just want a lowered dually street truck
 

bucket

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'77, '78, '79, '84, '88
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K5 thru K30
Engine Size
350-454
Easily, no. But it's not a ridiculous amount of work either. A C30 has a narrower rear perch spacing and the shocks mount inboard of the frame rails (they are also staggered the opposite direction).

Stock type rims or cut down 22.5's? I'm not entirely sure, but I thought a lot of people ditched the wide dually axle in favor of a narrower axle, to better tuck the big truck rims.
 

brooks7810

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Location
Arizona
First Name
Michael
Truck Year
1975
Truck Model
C20
Engine Size
454
I’ll have to look into that thanks, yes I was looking at doing cut down 22.5s
 

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