05-13-2015, 08:33 PM | #11 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,674
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Re: C30 GMC Dually
JD i am unaware and may be wrong of a wheel base change from 1980 to 1981. They did change between 72 and 73 though..67-72 swb is 115" lwb is 127" then from 73-87 swb was 117.5" and lwb was 131.5". so I would think any lwb bed would fit...1 ton may be different wheel base.. only change I know of in 81 was the new sloped hood design.
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