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    What to run? 3:42 or 3:73?

    I'm getting my rear diff ready and I need to get parts. I'd like to know if anyone prefers the 3:42 over the more common 3:73 for normal driving and highway, no towing or hauling ever. Truck is a 78 C10 with a 6.0 & 4L80. I "think" I'm going to run 275-60-15 tires on the rear. I played with...
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    Anyone use HOK base coat? How do you like it?

    Hello. I'm doing a 78 C10 that is a rotisserie build, it's currently still apart and I'm doing the final blocking. I'm going with a medium blue metallic. No pearl, flakes, or anything else. Just blue metallic and a few coats of clear then cut and buff. I've never used House of Kolor...
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    What are these holes for?

    I took a ton of pics before disassembly but I don't see what these holes were for. I have all the rest of them accounted for but these four are a mystery so far. It's on a 78 C10 with factory AC. Anyone know what they are for? I'm sure they will come into play during assembly but I want to...
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    Can anyone decipher this date code?

    I've search for a long time and can't find how to decipher this code. I'm just curious about it, its on a steering box. Anyone know how to read this? All I see on the internet regarding clock codes are ones that have 12 marks, not 5.
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    Idler Arm Orientation??

    I'm putting my front end back together and I have a new Moog idler arm. Both tapers are the same and it looks like it can go either way. I "assume" it can't be put on backwards, does anyone know different? It's a 78 C10. I haven't put it on yet, I just painted some parts including the drag...
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    2" drop spring question. With pics

    Hello, I'm wondering if anyone has ran into this before. I can't find any good info when searching. The new front springs are listed as 2" drop springs. The pic with the arrows shows where the top of the coils line up (pics are upside down). Look at the other end and see where the coils end...
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    Another leaf spring question: (plastic shims).

    I posted a question a while back about these plastic shims but that was before I took my springs apart. Now I see there is a hole on each end of one of the leafs that had a plastic shim that snapped in place. The pass side had the little plastic nub broke off so the shim scooted away from the...
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    Parking Brake Mechanism Question

    Hello, I've searched and haven't found an answer for this: In my pic there's a red arrow pointing to a spring that appears to be working, but the end sticking out doesn't look right, if I tuck it in with a screwdriver it goes back to the same position, is this normal? Also the spring with...
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    Moog Ball Joint Boot Slipping Off

    Hello. I'm finally getting my controls arms finished after blast, paint, bushings, and I just pressed the lower ball joints in and the grease boot slips up after I press them down. This is on a 78 C10. Ball joints are Moog K6117T. Before I complain or blame Moog I'm wondering what I can be...
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    LED Shop Lights That Last??

    I replaced all my shop lights in my 30 x 30 shop with Led bulbs. I have 8 fixtures that hold two 8ft bulbs each and another 8 fixtures that I flick on for painting only, so a total of 16 fixtures = 32 bulbs total. I bought the bulbs from Amazon and bypassed the ballast. They work great and are...
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    Any E Brake Cable Upgrades?

    Just wondering if anyone has switched from the 73-83 style E brake cable set up to the later 84-89 cable style? I have a 78 and the cable drags the bottom of my 4L80 pan. The later style looks much simpler on LMC trucks website and both cables run down the drivers side of the frame instead of...
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    Wanted: Rust free drivers fender for 73-80. North Central Texas/Southern OK area.

    Looking for a completely rust free Drivers side fender for my 78 C10. Preferably in the North Central Texas or Southern Oklahoma area. I'm in the 75069 area code. (Mckinney Tx).
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    Is this fender original or aftermarket?

    It's really not that big of a deal, but a friend gave me a drivers side fender over 20 years ago and I stored it away. It "appeared" to be an original since I blasted what seemed like the original paint off down to the metal and sprayed it with epoxy. I'm just now getting around to fitting it...
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    Proportion valve question

    I'm getting ready to blast and paint my frame for my 78 C10 2wd. I want to do all the brake lines while everything is easy to get to. I have a rear disc set up I'll be using and I'm unsure of what direct "bolt on" proportion valve and booster to use. I have done a lot of research already and...
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    To remove or not to paint frame?

    Hello, I'm not sure if I should have posted this in the paint and body section but since it's suspension I figured I'd start here. I'm fixing to sand blast and paint my frame for my 78 2wd. My question is I'm not sure if I should remove the lower front frame cross piece that's under the...
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    Body to frame webbing??

    Hello, I did search and can't find an answer. I see on LMC truck they offer "body to frame webbing" for 73-87 C10. Part # 38-7460 for 25.95, 30ft roll. My questions is: Is this "webbing" on these trucks from the factory? I tore my 78 down to restore and it didn't have any that I remember...
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    Where's the weld(s)?

    Hello all. Are there welds on all three places with arrows on a bed side? I got this pic from the internet, it's not mine. I'm just trying to decide whether or not to sand blast my bed together or in pieces so I can get in all the crevices. Thanks.
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    What is this hole for?

    I took many pics during disassembly but I failed to take one of this area. See the pic and does anybody know what this hole is for? I was going to fill it in but I googled up this part and they all have this hole. This panel goes under the steering column. Thanks.
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    Early or late window regulator for swap??

    I'm putting electric windows and locks in my 78. The door shells are empty so I can use either the 77-81 or 82-87 window regulators and motors. From a price standpoint the 82-87 is cheaper since LMC has the motors for 39.95 ea vs the 77-81 motors for 124.95 ea. I "assume" the later style...
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    Leaf Spring Slider/Liners

    Hello, on the rear of my 78 C10 there's some thin plastic shims hanging out of the sides of the leaf springs. After some research I see they are liners and I do see the material for sale to cut and put in. But I don't see any replacement kits for sale. I don't have the leafs apart yet but I...
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    Fixing large door/cab gap.

    I'm fitting my doors on to set the hinge position on the cab prior to removing the doors and finishing the final body work. This truck, like most all, has a fairly large gap at the top and at the A pillar, almost half an inch. This truck was like that since new and I've hated it all the way...
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    Door striker question

    Does anybody know if the factory door strikers on a 78 came with no bushings or do all have bushings from the factory. I've known this truck since new and nobody has worked on it but me and the strikers have no bushings. I'm asking because maybe they wore out and fell off? (I don't remember)...
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    Which posi unit do you like?

    I'm restoring a 78 C10, it will never be raced but I want to go back with a posi. It has the stock 12 bolt with I believe 3:07 ratio. There's so many different units out there I'm just curious as to what some of you are running and how smooth they operate. I'm looking at Eaton Truetrac, Jegs...
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    Who sells Torx style door strikers?

    I've done a lot of searching and can't find new original style door strikers that take Torx to tighten. All I see are the Allen head style. I know both will work but I want to stay with Torx if at all possible. Any ideas? Thanks.
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    Anyone leave their door springs off on purpose?

    I just got done rebuilding my door hinges using oversize bushings and new pins. My replacement doors are near perfect with no cracks around the door hinge area. My old doors had cracks around the door hinge area. I'm thinking about leaving the S springs off so the doors won't have the...

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