truck conversion

i was wondering if their are any conversion shops in michigan,ohio, indiana that does truck conversions. i would like to take my 83 1 ton single cab and make it a crew cab with a duramax, does anyone know of a
business that handles truck conversions to that extent.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.