Old77’s GMT400 SWB 4x4 5-speed project/DD

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legopnuematic

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1986 for cars I think and 1987 for pickups. My buddies 87 K5 had center bolt valve covers. Now in Ricko1966's possession (the 305 tbi heads).
 

bucket

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1986 for cars I think and 1987 for pickups. My buddies 87 K5 had center bolt valve covers. Now in Ricko1966's possession (the 305 tbi heads).

'86 cars had perimeter bolt holes still... although I'm not sure about Corvette. Corvette got aluminum heads starting in '86 and they might be centerbolt valve covers. I'll bet @Rusty Nail can say for sure. But everything in '87 had centerbolt valve covers.
 

legopnuematic

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'86 cars had perimeter bolt holes still... although I'm not sure about Corvette. Corvette got aluminum heads starting in '86 and they might be centerbolt valve covers. I'll bet @Rusty Nail can say for sure. But everything in '87 had centerbolt valve covers.
Corvette is what I was thinking of for 1986 center bolt covers.

My mind has been deep into the mopars recently :signs8:
 

bucket

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Corvette is what I was thinking of for 1986 center bolt covers.

My mind has been deep into the mopars recently :signs8:

I'll only hold that against you a little bit. Perry @idahovette probably holds that against you a lot, lol.
 

HotWheelsBurban

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1986 for cars I think and 1987 for pickups. My buddies 87 K5 had center bolt valve covers. Now in Ricko1966's possession (the 305 tbi heads).
I worked for a company for several years that had a few of the Chevy/GMC G20 vans, with TBI 350s. Had to do a thermostat, water outlet and tune up on one of em and it had center bolt covers. These were late 80s vans, and this was in the late 90s when I did the service work on this one. Once you get the doghouse out of the way it was easy peasy. Actually wanted to get one of these vans from them when they closed, but they were all worn out....
 

Old77

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I'm about 95% confident that I now have the cab interior 100% dry. Just to make sure, though, I went ahead and ordered new weatherstipping for the doors but that last couple big rains that cab has remained dry so that's feeling pretty good. Here pretty soon I'll be getting my audio sorted out, new-to-me seats installed and carpet ordered. I'll be out of town this weekend but hope to be able to make good progress on this over the next couple of weeks

Just picking away at her a little bit at a time :)
 

Old77

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Finally got time to start working on getting the “late model” obs seats in. Should be finished tomorrow night.

Stumbled across these and grabbed a few off OBSoutpost.com. Pretty slick set up and with 1/8” plate. I welded them in to make them more “permanent” and really like the setup.

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On this far passenger seat, I put these in on the back-inner corner and front-outer corner (near door). I could not use it for the front-inner because a heat shield is in the way so I’m using a fender washer at that corner. Back-outer corner is in the stock 1992 mounting hole. I’m hoping the “60” portion of the seat is about the same setup. I didn’t have time to mock that up tonight so I’ll keep you posted tomorrow night.

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After these are in for good, I start putting in heat/sound deadener and then audio. All to be complete before the end of the weekend. I’ll be starting to scope out carpet and seat covers soon. I already know what covers I’m going with (they are tan/black) but need to decide if I’m going with black or tan carpet. May get the seat covers first and let the make my decision for me.
 

Old77

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Seats are in. Far driver side bolts lined up perfect with existing holes so there’s 2 gold stars :) Inner most bracket for that 60 portion of the seat had to be modified. These seats came out of a 95-98 extended cab I had to cut down the rear portion of the bracket and weld it back. Not a huge deal at all but just something worth noting for anyone stumbling upon this thread and pondering the upgrade. Overall, it’s an easy swap with some fairly elementary level of fabrication skills needed :waytogo:

Next up, audio upgrades (this weekend), seat covers and carpet (TBD in the future :))

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HotWheelsBurban

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Seats are in. Far driver side bolts lined up perfect with existing holes so there’s 2 gold stars :) Inner most bracket for that 60 portion of the seat had to be modified. These seats came out of a 95-98 extended cab I had to cut down the rear portion of the bracket and weld it back. Not a huge deal at all but just something worth noting for anyone stumbling upon this thread and pondering the upgrade. Overall, it’s an easy swap with some fairly elementary level of fabrication skills needed :waytogo:

Next up, audio upgrades (this weekend) and carpet (TBD in the future :))

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GMT 400 extended cab floorpan is different than regular cab or Crew Cab, so the seat brackets are different. They look goooood in there...my Crew Cab has the same seat in tan. Regular bench in the back, with the fold down armrest/console.
 

Old77

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GMT 400 extended cab floorpan is different than regular cab or Crew Cab, so the seat brackets are different. They look goooood in there...my Crew Cab has the same seat in tan. Regular bench in the back, with the fold down armrest/console.
Yeah, I knew that was going to be an issue ahead of time but just banked on being able to overcome it. Luckily, it wasn’t too bad at all. With that said, the seat track on that seat is kinda funky so I’ll be on the lookout for a different seat bracket from a regular cab truck. Will probably take a hot minute to track one down but I’m in no hurry :) Overall, very happy with the outcome :)
 

Old77

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Finally got my rendition of the 4 corner mod complete

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Used these lights off Amazon and fitted them in. Also put them in the bumper lights but emptying new dorman connectors

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78C10BigTen

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Finally got my rendition of the 4 corner mod complete

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Used these lights off Amazon and fitted them in. Also put them in the bumper lights but emptying new dorman connectors

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Wow thats a wild idea!!! I really like that!
 

bucket

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I'm cornfuzzled. Those little lights you put in the park/turn lamp sockets... those are trailer marker lights. They aren't a dual filament type. Or is that just what you used in the corner lenses?
 

Old77

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I'm cornfuzzled. Those little lights you put in the park/turn lamp sockets... those are trailer marker lights. They aren't a dual filament type. Or is that just what you used in the corner lenses?
I used them for the corner lenses AND the park/turn lamps. :) I used 3 to 2 wire adapters called Blinker Genie 2 in order to make it all work since those park/turn lamp sockets are 3 wire units (ground/blink/constant)


I wanted it all to match and this worked out perfectly.
 

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