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1991 Chevy Truck Interior Upgrades

More Work Than It's Worth
By Fred Williams
Photography by Fred Williams
1991 Chevy Truck Interior Side View Supplies
With the old interior torn... 
   
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1991 Chevy Truck Interior Side View Supplies
With the old interior torn out I realized I had bitten off way more than I could chew.
1991 Chevy Truck Interior Interior Before
1991 Chevy Truck Interior Remove Old Interior
1. I started by tracking down... 
   
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1991 Chevy Truck Interior Remove Old Interior
1. I started by tracking down the new parts. LMC Truck is the complete shop for Chevy truck restoration and they have an excellent catalog of parts for Ford and Chevy trucks from 1947 up to today. However they hadn't done this swap before, so I had to first convince them it could be done and second figure out what parts I needed. I did both based on the hearsay of others that it was an easy swap, and quickly had a plethora of interior parts on the way. I also found a junkyard that had a '97 Suburban with the same red exterior color as my sled but with the more appealing gray interior trim. Since I knew I needed door panels, I got both front doors as well as returning multiple times for other parts. Then it was home to tear out the grungy old interior.
1991 Chevy Truck Interior Remove Seats
2. I tore the original parts... 
   
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1991 Chevy Truck Interior Remove Seats
2. I tore the original parts out quickly and used my rechargeable Ingersoll Rand impact tools a fair bit for easy removal. This electric ratchet, a drill, an impact, and even a die grinder/cut-off wheel were very valuable.
1991 Chevy Truck Interior Firewall Mounting Brackets
3. With the dash out of both... 
   
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1991 Chevy Truck Interior Firewall Mounting Brackets
3. With the dash out of both the Red Sled and red Suburban I realized that I would need the new steering column complete to the steering box. Since LMC had some parts like a new wheel but not the complete column, I dragged those junkyard parts home. I realized that I would also need to cut the firewall mounting brackets off both trucks and swap the new onto the older, which required drilling some spot welds out and welding back in.
1991 Chevy Truck Interior Switches
4. In addition to the steering-column... 
   
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1991 Chevy Truck Interior Switches
4. In addition to the steering-column bracket I also had to cut out the firewall from around the newer steering column and weld that patch onto the older truck in order to get a proper seal. There was a grab handle bracket off the passenger side and a hood-release mounting nut off the driver side that needed to be cut out and added to the older truck. It was about this point when I started wondering if simply keeping the older style dash and getting all new replacement parts for it from LMC wouldn't have been a better idea.
1991 Chevy Truck Interior Wiring
5. With the steering column/brake-pedal... 
   
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1991 Chevy Truck Interior Wiring
5. With the steering column/brake-pedal bracket welded back in, I started reassembly with the new LMC firewall insulation going in first. Being careful to route the wire correctly is a tricky part of this step.
1991 Chevy Truck Interior Heater
6. Since the HVAC system had... 
   
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1991 Chevy Truck Interior Heater
6. Since the HVAC system had seen better days, I replaced the heater element and repaired some cracks in the ducting with two-part epoxy. I also replaced some of the old ducting with new LMC parts.

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