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#1 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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1990 GMC Sierra extended cab
Well, I got a good deal on a 1990 GMC extended cab so I though I would post here to keep up the the progress. I'm not new to the forum, use to be in the square body section but a guy decided he wanted it more.
Here are a few photo of what I will be starting with. |
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#2 |
Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,587
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Re: 1990 GMC Sierra extended cab
That's a good grab. That thing is cool. I don't want to step on your toes if you're groovin on the 90s accessories vibe, but just returning that thing to mostly stock exterior will make it look even cooler. It reminds me of the black and gold Trans Ams in the '80s. I think that lower gold section looks neat.
Last edited by LT7A; 06-02-2022 at 05:45 PM. |
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#3 |
Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,587
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Re: 1990 GMC Sierra extended cab
Okay, bear with me here, but I have a busy imagination, and I like coming up with ideas, like a background story that could fit the theme of building a truck project. Might not fit in at all with how you do things or how you think. So just understand that this is my enthusiasm for working with what you've got there, not a road map that I think you need to follow, or anything like that. That color combo is not something you see now, and I think it's fun to work with a feature of a truck, even if it's an era that has already passed. I think, like I said above, that the obvious '90s accessories aren't helping it. But I think the idea of building it as if it was the next generation tow vehicle for the bandit Trans Am would be cool. Subtle custom and performance mods just to set it apart a little. Already has a dual exhaust. I think pulling the rest of the side trim would look cool and that the running boards / fender flares could go. That means the wide offset wheels would now stick out in would need to go - maybe replaced by some dark gold 17-in wheels that are a little more subtle? Looks like the back may have been lowered a little bit, but I think it could come down a couple inches in the front and an inch and a half in the back or so. A rear roll pan painted the gold color could be cool. That would make the front bumper stand out, and I think that painting it black would be cool. Gold would fit in because of where it is height wise, but it seems that the gold nose might be too much. Anyway, sorry about running amok with your new truck, but every once in awhile something gets my imagination going. I'll shut up now and let you get after it.
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#4 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
Thanks for your comments LT7A. I haven't decided what all I want to do with the truck yet but some of your ideas like getting rid of some if not all of the 90s stuff. The color combo is original to the truck and I will keep it that color and the rear has not been lower any that is the factory stance but I do want to lower it a little more. The first thing that I want to do is repair some rust spot around and under the batter tray area.
Feel free to make any more comments or suggestions that you may have. Here are a few more photos of what I am starting with. More to come later |
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#5 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
A few more photos of the interior as it is now
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#6 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
Haven't done much to the truck since my last post, still checking it out when time permits. Checked under the hood and found some rust on the radiator support and battery tray, nothing that can't be repaired.
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#7 | |
Registered User
Join Date: Jun 2014
Location: Orlando Florida
Posts: 1,598
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Re: 1990 GMC Sierra extended cab
That truck has a conversion package, like the vans. I'm not sure what company though.
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#8 |
Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,587
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Re: 1990 GMC Sierra extended cab
Yep, when you encounter oak in the interior of your truck or van from the 80s or 90s, you pretty much know it's been through one of the conversion companies. Some of that stuff is nice and convenient like the seat and overhead consoles.
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#9 |
Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,587
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Re: 1990 GMC Sierra extended cab
Looks like you've caught it in time to save a lot of it.
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#10 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
I got the battery tray out today to check it and clean it up to see if it could be saved, well I was a little to far gone to try and save. Will work on getting the inner fender out this weekend and see what it looks like in that area.
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#11 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,895
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Re: 1990 GMC Sierra extended cab
Nice truck, and good color combo.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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#12 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
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#13 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
Haven't done a whole lot to the truck in the past few week, several days of 100 degree plus heat index but I did get a battery tray ordered.
Today I started getting ready to pull the right inner fender shield to check out how much was damage was done from leaking battery acid. Before I could pull the inner shield I had to unbolt the running board on that side and pull it back far enough to get to the bolt so I decided to just take it completely off the see what the truck would look like without it. While pulling stuff just went on and took the broken bug shield off to, now just need to clean up that area and pull the bracket for the running boards. Will try and get inner shield off before days end. |
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#14 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
Finally got the inner shield off and it didn't look to bad, a little cleaning up, some rust treatment and repair the hole that rusted through and it should be good to go. The next step is to check out the core support in that area.
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#15 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
I got the core support out yesterday and it didn't look near as bad as I thought it did after checking the cost of getting one shipped, more than cost of the core support itself. The only bad spot is under the battery tray area, anyway will start cleaning it up to see how bad the rust really is.
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#16 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
I pulled out the usual, wire brush, sandpaper and my Harbor Freight air needle scaler. It cleaned up fairly well considering and after that gave it a good treatment of rust converter and let it set for a day or two. That last photo is after the rust converter has sit for a while. After that will make a card board template of that area and see how it goes.
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#17 |
Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,587
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Re: 1990 GMC Sierra extended cab
You got the rust cleaned up well. Hopefully you can piece in the patches needed.
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#18 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
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#19 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
Still working on the core support and the inner fender shield but got to checking the frame horns and wondering what you guys use on surface rust in them, a wire brush only go in so far. By the way found a spark plug in the left horn and the bumper has never been off so how do you guys think it got there
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#20 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
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Re: 1990 GMC Sierra extended cab
Finally finished repair of the radiator core support. Finished the rust treatment and made a template out of cardboard and cut a piece of sheet metal to match, tack welded it to the support, not the best looking welds, cleaned things up with jb weld and plastic metal. Will clean up the whole thing and paint when ready to reinstall. Now on to the inner shield.
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#21 |
Registered User
Join Date: Mar 2014
Location: West Monroe, Louisiana
Posts: 79
|
Re: 1990 GMC Sierra extended cab
Finished up the repair on the inner shield except for priming and will get that done. Use the same process as used on the core support except did not weld any metal, hole was to small, rust treatment, jb weld and a little plastic metal.
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#22 |
Registered User
Join Date: Jun 2013
Location: Brooksville Ky
Posts: 531
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Re: 1990 GMC Sierra extended cab
Around here, if you can find these trucks that have a solid rear frame, you are lucky. My 94's frame is in great shape, I just need to put it on the rack and paint it. That's going to be a nice truck, I like the GMC's.
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