'76 3/4 ton, light versus heavy.
#2374584
09/21/17 04:07 PM
09/21/17 04:07 PM
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bboogieart
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I have a 76 D-200. I swapped out the rear axle a number of years ago. Now the lug nut size is different from front to back. The rears are the 1/2"-20 The front is the larger 5/8"-18 size. Can I swap the rotors or must I find a complete spindle set-up? Ball joints? Control arms? I need to know what I'm looking for when I go salvage yard shopping. The new wheels I bought do not fit over the larger studs up front. Thanx in advance for any help.
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: bboogieart]
#2375291
09/23/17 12:40 AM
09/23/17 12:40 AM
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19swinger70
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My W300 has 5/8" studs. Not sure about the 3/4 ton trucks?
1970 340 swinger. sublime 1967 barracuda fastback BB 55 Plymouth Project
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Re: '76 3/4 ton, light versus heavy.
[Re: 19swinger70]
#2375322
09/23/17 02:18 AM
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Mr. Smurf
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My W300 has 5/8" studs. Not sure about the 3/4 ton trucks? Never seen anything but 1/2" on a 3/4 ton truck...... Ed
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Re: '76 3/4 ton, light versus heavy.
[Re: bboogieart]
#2375360
09/23/17 09:19 AM
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ruderunner
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Bboogieart, can you post pics of the front suspension?
Sounds like your truck might have come with the 4000# front end. If it did, you can probably just swap the wheel studs for ones from a 92 D250 Cummins, those used the 4000# front end and have 1/2" studs.
Poorboy is right about not mixing and matching ld and hd stuff.
Are your front rotors a separate rotor and hub or all 1 piece cast? I don't think the 2 piece were used on anything but the 4000# axle.
Angry white pureblood male
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Re: '76 3/4 ton, light versus heavy.
[Re: ruderunner]
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09/23/17 02:41 PM
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bboogieart
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I changed the rear axle years ago, for an '84 unit. The rotors appear to be two piece. I too, don't feel like changing out the entire front end. "maybe swap the wheel studs for ones from a 92 D250 Cummins". I like this idea. Will look into it, and report back. Sure would simplify things if it works. If not, well, we'll cross that bridge. The truck only gets used to go to the dump or salvage yard. Any other hauling I use the van. Again, thanks for all the input and help.
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: bboogieart]
#2375537
09/23/17 04:02 PM
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bboogieart
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They most definitely made a heavy and a lite 3/4 ton. It looks to be the 4000# axle. The '84 looks to have been the lighter duty truck. Truck weighs 4600#s empty but with me in it, going over the scale at the scrap yard. I thought about drilling the holes in the wheel. Then I thought better of it. I see someone else has thought the same thing and was advised against it. Again, Thanks for all that responded. More pictures for clarity.
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: ruderunner]
#2375861
09/24/17 12:18 PM
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bboogieart
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Byou can probably just swap the wheel studs for ones from a 92 D250 Cummins, those used the 4000# front end and have 1/2" studs. Do I just swap the studs or can I swap the disc?
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: Mr. Smurf]
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09/24/17 12:42 PM
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bboogieart
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I learned something today. Looking to learn more. Uses the same brake calipers as a dana 60 4x4 truck That is most likely what the rear axle was I swapped out. The replacement came from an '84 3/4 ton pick up truck. At the time I never even thought to look at the studs. I had it, I used it. What is the gvw on the truck? Tag says; Front-3400 Rear-6200 Total-9000 Truck weighs 4400#s It's says D-200 on the front fender. Title just says Year-1976, MAKE-DODGE, VEHICLE TYPE-TRUK
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: RUNCHARGER]
#2375878
09/24/17 12:55 PM
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bboogieart
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The heavy ones are called "9500"s and have bigger wheel studs. I had a 78 like that. Are you talking pick-up, or the Tow-truck/Dump-truck/Flat-bed sized units? Those were more than one ton or bigger, were they not? Those would be even bigger studs yet. I thought the 70's pick-up trucks were all D or W 100 D or W 200 D or W 300 I've got a 78, but it says 150 on it. It's Prospector/Adventurer in a half ton. I'm pretty sure this is simply the heavy 3/4 ton. The smaller version was simply a light 3/4. Both D-200 designation. Am I wrong in this assumption?
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: Mr. Smurf]
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09/24/17 01:02 PM
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bboogieart
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My W300 has 5/8" studs. Not sure about the 3/4 ton trucks? Was the 300 a 4 wheel drive, 1 ton truck?
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: bboogieart]
#2375936
09/24/17 02:59 PM
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ruderunner
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Think you should be able to swap studs. Not sure the whole hub and rotor combo swaps.
As for model designation,. D is 2wd,. W is 4wd. 100 is light half ton, 150 is heavy half, these came about in the mid 70's due to emission regs. 200 is 3/4 and 300 is 1ton.
The 9500 tossed out above is referring to gvw.
Angry white pureblood male
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Re: '76 3/4 ton, light versus heavy.
[Re: ruderunner]
#2375947
09/24/17 03:24 PM
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Yes: The 9500 was a heavy GVW package that came optional on a D200 and probably a W200. It upped the GVW of what the truck could haul and of course it included lots of HD suspension components. They generally had an emblem on the exterior denoting the package. They came about due to the heavy campers of the day being too heavy for a D200 to carry.
Sheldon
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Re: '76 3/4 ton, light versus heavy.
[Re: RUNCHARGER]
#2376034
09/24/17 07:43 PM
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bboogieart
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I knew the W versus D thing.
Mine is 9000# GVW. I suppose that puts it in the heavy weight class? I have heard of lite and heavy 3/4. Lite and heavy half ton is news to me. I thought the 150 thing was an '80's designation for half ton. We live- we learn. Anyway, it seems I'm looking for the '90's Cummins parts, or possibly some replacement studs. We'll see how it goes. I'll get back when I have some news. Thanks again.
I have mechanical Aptitude. I can screw up anything.
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Re: '76 3/4 ton, light versus heavy.
[Re: poorboy]
#2376360
09/25/17 12:05 PM
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bboogieart
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Yeah Gene, I get the check box, order sheet, deal.
Likely the best explanation.
As for the debate? I'm not here for that either. Planning on going to the parts counter today to see what we can come up with.
After that it will be the salvage yard.
Worst case scenario would be to buy more new wheels. Some how or the other those 16.5's gotta go. That old beater has a lot of life in it yet.
I have mechanical Aptitude. I can screw up anything.
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