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Last month we explored the virtues of the 1988-'98 General Motors GMT-400 trucks while introducing the budget-based makeover of this 1997 Chevy C1500. The GMT-400 haulers, or "OBS" (for old body style) as fans have taken to calling them, are similar in dimension to the classic Chevy pickups of 1967-'72, but benefit from more modern technology like electronic fuel injection and overdrive transmissions. Plus, they are plentiful, relatively inexpensive, and parts are easy to source.

Our project truck was purchased by friend-of-Hemmings Glen Sauer, who was looking for something to build with his young son. Glen is a longtime fan of the 1967-'72 Chevy trucks, having owned and built several, but recognized the value in the newer generation when this completely rust-free '97 C1500 short-bed was brought to Vermont from the Carolinas. The price was right, and the "new" pickup even had shiny factory paint. However, there were some things Glen wanted to improve to create a fun street truck with a modest budget.

Topping the list of trouble areas was the interior. This particular example left the factory with a blue cabin that Glen felt looked like something from an '80s Buick LeSabre. The plan to correct this involved salvaging a gray interior from a pair of parts trucks acquired for this project. Between the two, Glen managed to get an uncracked gray dashboard, a full set of gray plastic interior panels, and a 60/40 split bench seat in gray vinyl and cloth tweed that needed a little repair work. Glen also ordered a new carpet and some new door handles and switch panels to complete the refurb project.

For this installation, Glen enlisted help from friend David "Junior" Nevison, who spent lots of time in a previous life working on the interiors of these GM trucks back when they were newer. Junior's insights were really valuable in getting parts like the dashboard swapped without damage. Check out the photo captions to see how he turned a clapped-out, 200,000-mile blue interior to a fresh, sporting gray.

1. Owner Glen Sauer didn't like the blue interior on his recently acquired '97 C1500, and it was pretty well worn anyway after nearly 200,000 miles and more than 20 years. The plan to improve it on a budget involved swapping the blue bits for a gray interior, using a combination of refurbished used pieces salvaged from parts trucks along with a few select new items.

2. The first part of the renewal focused on swapping in a better-condition gray dashboard. This might seem intimidating, but Glen was able to enlist the help of friend David "Junior" Nevison, who has spent lots of time working on 1988-'98 GM trucks. Junior, in turn, told us it really isn't a big deal: Lower the steering column, then loosen one bolt up under each end of the dash panel, and then remove the row of fasteners along the top. The rest is electrical plugs and other connectors.

3. Junior had the dash swapped quickly, and then proceeded to remove all the remaining pieces of the blue interior from the cab. On GM trucks of this vintage, most of the interior's plastic panels that aren't fastened with obvious Phillips-head screws are held in with clips of some kind. Most will yield to pulling by hand, but take care not to damage the panels during this process. They kept all the old pieces on hand until the project was done, then salvaged extra clips and fasteners.

4. Though they intended to use lots of reclaimed items from two different parts trucks, a fresh carpet seemed like a good investment. They got a new gray carpet for a standard cab from Auto Custom Carpets and it dropped right into place. All of the edges come oversized and will require trimming, however.

5. After getting the carpet positioned properly, which included cutting around the pedals up behind the dash, Junior started trimming along the back of the cab. This is the point where a commitment is made to the carpet's positioning, so the cuts need to be accurate. Junior uses a razor knife with a fresh blade.

6. Prior to starting the interior installation, Glen had taken the factory-installed headliner to a local trim shop to be recovered in fresh gray material. The original, molded fiber backing gave up its blue material fairly easily, and was then sprayed with adhesive and covered with new material that included a thin layer of foam.

This serves to smooth out the surface, so that when the replacement material is fully applied to the molded headliner card, it looks like new.

7. The headliner needed to go in next, because it is partially held in place by the interior side panels, which need to go in to finish the carpet install. There are Velcro strips along the front edge of the cab roof that attach to strips on the headliner backing, and that's where Junior started. He positioned the front edge of the headliner, pressed the Velcro strips together, and then wrapped the loose material edges up and around the mounting lip, just as the factory intended. Then the rear portions of the headliner are held up by the interior side panels, which were loosely put into position first.

8. The A-pillar covers also contribute to keeping the headliner in place and include edging that continues rearward, over the door opening, to join the rear side panels—this will completely cover the edges of the headliner. Clips fasten the covers and then the factory grab handle will be installed.

9. With the side panels popped back into place, Junior can put the pieces back onto the rear of the cab. A piece of black sound-deadening material is rehung using the original plastic push clips, and then another gray interior panel salvaged from a parts truck is installed, covering the sound deadener's top edge and clips.

10. With the headliner and side panels taken care of, Junior can turn back to the carpet installation. The rear edges of the carpet were cut to fit neatly under the rear side panels, and then the edges were trimmed with the razor knife to fit the door openings. This is another area where accurate cutting is key—the carpet edge will be covered with the sill plates, but there is a narrow margin between the edge of the plates and the groove they fit into.

11. In the interest of staying on budget, Glen opted to use a set of gray seats salvaged from a parts truck rather than recovering the truck's original blue seats. Despite being really dirty, the gray seats were in good shape, save for one problem area on the driver's side where there was a sizable hole.

12. Back at the upholstery shop, the gray driver's seat was stripped of its bottom cover so the hole could be repaired. This will be handled by replacing the entire vinyl side panel. The trimmer cut the factory stitching to remove the panel, then used that piece as a pattern to make a replacement from similar material.

13. The new panel was sewn into the factory seat cover and then the cover was reinstalled on the seat. The reassembled seat now looks factory but will still need a thorough cleaning.

14. After an initial attempt at installing the refurbished seats, they found that the mounting brackets were not fitting the floorpan correctly. It turned out the brackets on the gray seats, which came from an extended-cab truck, were different than the standard-cab pieces. Fortunately, they still had the old seats, and the brackets were interchangeable. Glen was able to get SEM interior paint to spray the blue brackets with gray.

15. With the new brackets painted and installed, they could finally mount the refurbished gray seats. This is a 60/40 split bench arrangement, but that's what this truck was built with, so the original mounting holes were reused.

16. Also taken from a parts truck were the gray seatbelts. The outer reels bolted right into the same spots as the blue originals. Glen had taken these to a local upholstery detailer to have them cleaned up along with the gray seat, and they came out looking new.

17. The truck's factory blue door panels were in rough shape, but Glen was able to get a good pair of gray ones together from his parts trucks. After cleaning, the new panels were swapped for the old ones. Glen ordered new door latch handles to replace the commonly broken originals, and new powerwindow switch panels in gray are on order now. A little bit of remnant carpet will be used to freshen the lower sections.

18. Here's the completed interior rehab, looking fresh and a bit more contemporary in gray. The tweed split bench looks good and will remain for a time, until a factory power leather split seat Glen pulled from the salvage yard can be recovered in new skins. But that's another project for another day.

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One Perfect Day at Hemmings Bennington, Vermont Headquarters

Here at Hemmings, we get lots of questions about our home office: Is it cool? Do we have a collection of cars? What's Vermont like? So, we kicked-off this episode of One Perfect Day in Bennington, Vermont at Hemmings headquarters. But a day in Vermont isn’t complete until we go on an epic parts chase, so come along with us as we scour the Green Mountains of Vermont for a hood for host Glen Sauer’s project truck and end the day at the last Hemmings Cruise-In of the year! Hemmings is the ultimate destination for finding your perfect ride.

Head to Hemmings.com to register and start your search today or download our Hemmings marketplace app for Apple and Android devices. Hemmings Events Hemmings Cruise-Ins Join us at our five summer cruise-ins in partnership with The Better Bennington Corporation. Click the link below for more info and directions on how to get there. https://www.hemmings.com/event/cruise...

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