Pawpaw's 55 GMC.......my new project
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Sold off my 77 Big Ten a while back and have been working on a 48 Willys CJ2A with my son since. This one came as a surprise last week as I wasn't looking for another project right now.
I remember him taking us for rides in this truck. At the time, it was black after been painted with a brush over the original 2 tone green. It had the old "ooga" horn that we loved to hear. My uncle, their only son, got it when he left the Navy in 1987. With good intentions, he started the restoration but, like most projects, life and other hobbies kept it from being finished. Last week, he called and asked me if I wanted to finish it. I didn't hesitate..........HELL YES! I picked up the first load of parts Tuesday after work. He has a lot of new parts as well as extra original parts he's picked up over the years. Most of this will be more reassembly than repair because it's pretty damn solid but there will be some metal replacement needed. I have a goal in mind (2nd pic). Still mostly original but with a touch of old school hot rod. |
Re: Pawpaw's 55 GMC.......my new project
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Re: Pawpaw's 55 GMC.......my new project
Of all the 40s and 50s trucks, the 55 GMC is the best IMO.
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Re: Pawpaw's 55 GMC.......my new project
have you had a task force truck before, do you know the common rust spots?
cab corners windshield eyebrow lower door hinge pillars where the step, pillar, cab mount and lower front fender mount all come together front section of floor inner cowls steps and rockers rear cab mount support area roof area around/above the rain gutter rear window around/under the rubber for the glass front fender eyebrows above the headlight front fender lower rear area usually right where the vertical brace is behind the skin front fender rear inner lower brace front fenders on the top rear area where the rear of the hood would be roughly rad support where the lower mounts are rear fenders on front edge above the step rear fenders on the inner mounting lip if you get time post up some pics of how things look. if youve never had one of these just look online at what repair parts are available and then check your truck for those spots to ensure it is actrually solid. sandblasting or media blasting would also give you a good idea but then you gotta do something with it. sometimes a great looking truck from the field turns out to be swiss cheese after blasting. still gotta pay the guy though. yours looks pretty good from the one pics of the cab. any previous damage or repairs you know of? |
Re: Pawpaw's 55 GMC.......my new project
was it a complete truck when you got it? like you have the original doors etc? they are not a one size fits all, more like one door fits the truck it came off. i have 5 doors and they all fit differently or not at all. hinges can be factory bent to make the door fit so try to rebuild what you have there if possible.
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It is complete but disassembled. I have all of the original parts except the bed (have one in better shape) and the driver's door (also have a replacement). It's possible that the original door may be found as I haven't gotten all of the parts to my house yet. |
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When I get all the sheet metal home, I will get some more pictures posted. |
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More pictures.........
Original passenger side door still has the original green under the brushed on black house paint. Top of the cab (eyebrow) is solid. |
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Passenger side. Only rust is the cab corner on and that small spot where the floor pan meets the toeboard. |
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Sorry for the way the last 2 pictures are oriented. I tried multiple times to turn them correctly but it didn't work. This is from the driver's side. Small hole above the step. Lower hinge pocket is buggered up. Looks like someone pried on it at some point. 2 small holes where the floorpan meets the toeboard on this side also. Cab corner. |
Re: Pawpaw's 55 GMC.......my new project
You might be able to pressure wash and/or paint strip that black and get down to the green... might be worth it!
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Re: Pawpaw's 55 GMC.......my new project
I wish I had one again, I had a '55 GMC back in the early 80's. When my step father kicked me out of the house, he sold it and I've never seen it since!!
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Re: Pawpaw's 55 GMC.......my new project
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So about 30 years or so ago, my uncle started on this truck. The cab and front fenders were media blasted. The cab was primed but the fenders were not. Filler was started right over the bare metal and they were stored in the rafters of the garage with no paint on them. Heavy surface rust..........I dropped them off today at lunch to be media blasted again. Next up will be replacing the rusty areas and then epoxy prime.
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My cab was nearly identical to yours with the same colors and rust spots. The rockers and steps are easily replaced together in one piece and cab corners tie in also. The hinge pockets and all of the metal is available to make it relatively easy if handy with a welder.
PRO TIP: Test fit a windshield before you start cutting and replacing metal. If the windshield doesn’t fit, fix that first and brace it. Hopefully your fenders clean up nicely also. |
Re: Pawpaw's 55 GMC.......my new project
Thanks NWA58. The cab is amazingly solid or maybe I'm just used to the rusty old Mustangs that I was previously in to?
The cab corners are the largest pieces that will be replaced. The steps are solid except for a small area in the upright pieces so I will just be making a small patch there. Same with the other spots......just small patches where needed. |
Re: Pawpaw's 55 GMC.......my new project
post up some pics when you get the parts back from the blaster. include a few shots of the normal problem areas, lower hinge pillars, cab mounts, etc. sounds like you got a gooder. awesome.
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Front fenders are back from the blaster. I expected them to clean out all the filler but the owner explained that they didn't like doing that because they have to go at it so hard that it has caused issues with the metal in the past. If I'd have known that ahead of time, I would have ground it all out myself so they could have blasted thw metal underneath the filler.
I'll get some more detailed pictures when it stops raining here. |
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Brought the bed, hood, seat and radiator support home last weekend.
This isn't the original bed. Supposedly this one is/was better than the original. There is a 1/4" steel plate tack welded over the remnants of the wood. It appears all the floor braces are solid. The 1 step is shot (from sitting on the ground) but the other one is solid. I do have the original 55 GMC fenders from my truck that will be going on this box. |
Re: Pawpaw's 55 GMC.......my new project
So your donor shortbox is getting both fenders, one step, AND a tailgate replaced?( to say GMC)... so much for a donor! :lol:
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Been working instead of posting. Front drop axle is now in place and mocking up the front discs. Lots of parts have been rolling in.
I gotta source a small piece of 3/8" plate to cut the brackets from. I have plenty of 1/4" in the shop but never use 3/8" so I don't need a whole sheet. I'm using 6 lug 12" rotors and the only brackets I can find online say they're for the smaller 11" rotor. I have the bracket mocked up in 1/8" steel now. |
Re: Pawpaw's 55 GMC.......my new project
Looks good. If anything I would say put a wheel on and see if you need to trim the bracket ear so it doesnt rin the tire.
Try a welding fab shop, they usually have smaller pieces laying around. Good idea to mock up in what you have laying around. Also makes a great pattern to have should you or somebody you know wanna do it again. |
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These would work and are what I based my template off of but they're on backorder. https://www.speedwaymotors.com/Basic...ckup,7688.html Since I changed jobs, I don't have access to the steel supplier I used to use. He has some 3/8" drops but is over an hr away from me now so I can't just run there at lunch. The area I'm in doesn't have any suppliers. |
Re: Pawpaw's 55 GMC.......my new project
do you have a high school in the area with a metal shop? sometimes the teacher will give kids a project like that to learn skills with a torch or whatever. they could cut it out for you, learn a thing ot two and you get a cheap (likely) part that you can finish yourself.
send the cut pattern biggger than you need, lol. |
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Well I got my 3/8" plate and cut the brackets out. Not happy with them. These are straight pieces and to use the 3/8, they really need a bend in them for the caliper. The inside pad won't fit between the rotor and bracket without grinding. I currently have the bracket ground down to 5/16" so that the pad fits but it still needs more so the pad doesn't ride against the rotor so much.
The 15x6 wheel is also rubbing the caliper even with the 3/16 spacer. Have to grind there too and maybe up the spacer. I won't do that though until I resolve the bracket issue. |
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A couple of comments:
1) The 6 lug kits are designed using later model square body caliper and rotor hats for 16" wheels. If you are using 15" wheels, you need to make sure they are designed for disc brakes (yes there are differences) and clear the calipers. There may also be a need for a thicker wheel spacer. 2) That bracket you are working on, note in the kits there is an offset in the bracket which offsets the caliper mounting further inboard a little. Again for wheel clearance. 3) The 5 lug kits have early 70's Camaro components which work with the 15" wheels better. |
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A 15" wheel SHOULD clear. I just need to find the right one or use a larger spacer. I know 3/8" will do it but then that will need longer wheel studs. I'd like to stay at 1/4" or less. I can grind some off the corner of the caliper since it isn't rubbing much. I just have to iron out the bracket issue. I will probably just go ahead and order these https://www.speedwaymotors.com/Weld-...cket,3348.htmland build them the way that they were done in this thread https://67-72chevytrucks.com/vboard/...d.php?t=797504 since this is where I got the rotor and caliper info to begin with. |
Re: Pawpaw's 55 GMC.......my new project
Looking good! Looks to be a good starting point. I’ll be following
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Re: Pawpaw's 55 GMC.......my new project
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While it was raining Saturday, I managed to get the driver side fender patched. Both have rust though along the edge where the brace is on the back side. You can see in previous picture that one had had filler put over the rust holes. All that was ground out and I did some hammer & dolly work to straighten the dents so it'll only need a skim coat not instead of the 1/4" thick stuff that was on there.
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did you also need to replace part of the inner rear brace as well? mine has the same issue but im not there yet.
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have you ever tried a shrinking disc for the final metalworking after the hammer and dolly? they work great. basically, they hit the high spots only and heat them up from friction, then you use a wet rag to cool those spots down fast and the shrink, levelling the surface. onlt needs to get hot enough to cause a little steam when the wet rag is rubbed accross. some have used a fabric iron for the same theoretical purpose. there are videos on youtube. wray shelen (? spelling) sells a good one and also has a video.
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Re: Pawpaw's 55 GMC.......my new project
yup, I have seen make it custom's stuff. always good ideas and shows how to get stuff done without buying a garage full of spendy tools.
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