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post #1 of 20 Old 05-17-2019, 10:04 AM Thread Starter
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My first gen Dodge Cummins truck

I've had a number of these first gen trucks over the last 15 years to haul firewood and they rusted out but taught me what I really wanted as far as configuration. I decided I wanted a one ton 2WD 5 speed manual dually standard cab and found exactly one outside the rust belt in the US at the time.

It was in Knoxville, my wife's cousin works in a car shop about an hour away, he's from Northern Indiana so he knows rust and checked it out for me. It was a farm truck so it had some rough edges and I knew it needed a grille and bumper (photo) but they are hard to find so I went for it. A buddy was headed down to Florida and back with a trailer so he picked it up for me but not before it hauled my wife's cousin's boat a few hours to a lake in Tennessee.

It turned out to need a radiator support and inner fender as well. The inner fender was easy, the radiator support was Cummins intercooled only and took an 8 hour round trip to find one.

While I had the front end off, I addressed the killer dowel pin and changed seals/serp belt/tensioner and flushed out the cooling system.

The gauges and speedometer worked randomly so I replaced all of them and cleaned up some wiring in the dash.

The exhaust was cobbled together so I installed a 4" Diamond Eye turbo back system.

The front truss rod bushings were totally shot so those were replaced. The rest of the front end should be redone as well but it's tolerable now.

Right after all that, I ended up needing major right shoulder surgery twice and was forbidden to drive anything with a manual transmission so it sat in the barn for almost 2 years. In the meantime, I hoarded parts as I found them and found a nice set of Ramcharger buckets and a console in matching grey cloth that I need to install.

It's been a year since the most recent shoulder surgery so I'm cleared to drive it now. I stuck on a decent fender but it has some Ohio rust, I have a better one that needs some work, but here it is. It doesn't look like much now but it's better than when I started and eventually it will look pretty good.
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1954 Ford Jubilee
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92 Dodge Cummins 12 valve dually
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post #2 of 20 Old 05-17-2019, 12:21 PM
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Re: My first gen Dodge Cummins truck

I can't believe someone would say northern Indiana is know for rust. Did you check the case bolts also they can come loose also.
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post #3 of 20 Old 05-17-2019, 01:27 PM
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Re: My first gen Dodge Cummins truck

Cool truck and neat story! Thanks for the photos. It's neat that you've owned several of these to determine the exact configuration that best fits your needs. A first gen Dodge dually has a special look.

It sounds like you're already off on a good start on your way to fixing it up. It's great you're able to drive it again and I'll bet it sure feels wonderful to be behind the wheel while feeling the torque of the Cummins and shifting some gears. I'm sure it sounds just fine with the new exhaust too. Any plans on a little pump tuning and running some gauges or keeping her all stock? So much room to work underneath the hood of a first gen too!

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post #4 of 20 Old 05-17-2019, 03:22 PM Thread Starter
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Re: My first gen Dodge Cummins truck

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Originally Posted by 9297oldram View Post
I can't believe someone would say northern Indiana is know for rust. Did you check the case bolts also they can come loose also.
I know SW Ohio is bad, my wife's cousin said it was worse up there, so I'm going with that, not knowing any better myself.

Which case bolts are you referring to?

Thanks

1954 Ford Jubilee
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John Deere 185
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post #5 of 20 Old 05-17-2019, 03:25 PM Thread Starter
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Re: My first gen Dodge Cummins truck

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Originally Posted by Austen View Post
Cool truck and neat story! Thanks for the photos. It's neat that you've owned several of these to determine the exact configuration that best fits your needs. A first gen Dodge dually has a special look.

It sounds like you're already off on a good start on your way to fixing it up. It's great you're able to drive it again and I'll bet it sure feels wonderful to be behind the wheel while feeling the torque of the Cummins and shifting some gears. I'm sure it sounds just fine with the new exhaust too. Any plans on a little pump tuning and running some gauges or keeping her all stock? So much room to work underneath the hood of a first gen too!
Thanks for the reply. I can tell the pump has been tweaked on this one, no plans for gauges yet since this one won't be hauling anything.

Yes, the sound through the split rear window going through the gears is glorious. I had a really nice extended cab dually but it was an automatic and it just wasn't the same. I stole the cold air intake from the x cab before I sold it as well.

1954 Ford Jubilee
John Deere 180
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92 Dodge Cummins 12 valve dually
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post #6 of 20 Old 05-17-2019, 03:53 PM
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Re: My first gen Dodge Cummins truck

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Originally Posted by 8888 View Post
I know SW Ohio is bad, my wife's cousin said it was worse up there, so I'm going with that, not knowing any better myself.

Which case bolts are you referring to?

Thanks
The bolts that hold the case to the block, they can come loose and be as bad as the KDP.
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post #7 of 20 Old 05-17-2019, 03:55 PM
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Re: My first gen Dodge Cummins truck

Nice!

I have had 3 first gens and I'm still running my 93 4x4 auto club cab 8' bed.

I was going to do the work myself to the 93 but it was winter and it needed a flex plate so I had my diesel guy do the flexplate, pump twist, 3200 governor spring, and a small twist on the fuel screw. I had put the fuel pin already. MAN did that wake that truck up!

Being from PA I'm in the rust belt too. I had to put new floors in it, both front body mounts, and one rear mount. It still needs rockers and I have them but it can wait until I'm ready to paint it for that.

My wife has a 2000 ext cab short bed 4x4 5 speed that she LOVES, and man that thing will run circles around my truck.

Good luck with finishing it up can't wait to see it done.

Tony

Been driving Deeres since 1974, Dodges since 1984, and Davidsons since 2004. Love my wife and kids I'm a blessed man.

1970 140 H1
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1983 314 H1 for sale
110 parts tractor for sale
198? 332 50" deck
300 series #33 tiller
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piston lift snow blower
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post #8 of 20 Old 05-17-2019, 10:04 PM
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Re: My first gen Dodge Cummins truck

Quote:
Yes, the sound through the split rear window going through the gears is glorious.
Nice, I think the 12 valves sound the best out of all the B-series Cummins.

Bolens HDT1000 #11- Coming eventually!

1977 Economy Tractor
Hydraulic lift conversion
24" model front king pins
48" Belly mower
32" tiller
3pt hitch

”What joy for those whose strength comes from the Lord." - Psalm 84:5



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post #9 of 20 Old 05-17-2019, 11:46 PM
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Re: My first gen Dodge Cummins truck

Never had a diesel in one but knew that series of Dodge truck very well. They had their quirks which I learned to live with.
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post #10 of 20 Old 05-18-2019, 03:49 PM Thread Starter
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Re: My first gen Dodge Cummins truck

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Never had a diesel in one but knew that series of Dodge truck very well. They had their quirks which I learned to live with.
The only thing that have been a common problem on mine has been the serpentine belt tensioner bearing and outer oil seals on the rear axles that can starve the rear axle bearings. The 2WD front end isn't really up to the task of supporting the engine and I need to deal with that soon. Other than that, they have been really reliable for me.

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John Deere 185
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John Deere 345
92 Dodge Cummins 12 valve dually
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post #11 of 20 Old 05-18-2019, 04:11 PM
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Re: My first gen Dodge Cummins truck

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Originally Posted by 8888 View Post
The only thing that have been a common problem on mine has been the serpentine belt tensioner bearing and outer oil seals on the rear axles that can starve the rear axle bearings. The 2WD front end isn't really up to the task of supporting the engine and I need to deal with that soon. Other than that, they have been really reliable for me.

If you keep blowing oil out the axle seals then check your axle vent hose to see if it's plugged.
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post #12 of 20 Old 05-18-2019, 06:37 PM
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Re: My first gen Dodge Cummins truck

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Originally Posted by 9297oldram View Post
If you keep blowing oil out the axle seals then check your axle vent hose to see if it's plugged.
X2 on that.

Been driving Deeres since 1974, Dodges since 1984, and Davidsons since 2004. Love my wife and kids I'm a blessed man.

1970 140 H1
1977 300 H2
1983 314 H1 for sale
110 parts tractor for sale
198? 332 50" deck
300 series #33 tiller
Single piston dirt/snow plow
piston lift snow blower
Hand made pintle hitch
Bradley plow, harrow, and disc.
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post #13 of 20 Old 05-19-2019, 04:28 PM Thread Starter
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Re: My first gen Dodge Cummins truck

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Originally Posted by mopar65pa View Post
X2 on that.
Thanks, axle vents have been clear, I think they generally just wore out and I was lucky enough to be owning the trucks. The least amount of miles I've had on one has been around 175,000.

1954 Ford Jubilee
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John Deere 185
John Deere LX188
John Deere 345
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post #14 of 20 Old 05-20-2019, 05:19 PM
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Re: My first gen Dodge Cummins truck

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Thanks, axle vents have been clear, I think they generally just wore out and I was lucky enough to be owning the trucks. The least amount of miles I've had on one has been around 175,000.
I had a 90 that had an 89 D71 rear axle (yes a different seal than the 90 D71). I could NEVER get the seals to stop leaking. They dribbled all the time. Twice a year I would have to brake clean everything in the brake assembly.

Been driving Deeres since 1974, Dodges since 1984, and Davidsons since 2004. Love my wife and kids I'm a blessed man.

1970 140 H1
1977 300 H2
1983 314 H1 for sale
110 parts tractor for sale
198? 332 50" deck
300 series #33 tiller
Single piston dirt/snow plow
piston lift snow blower
Hand made pintle hitch
Bradley plow, harrow, and disc.
mopar65pa is online now  
post #15 of 20 Old 05-21-2019, 07:47 AM Thread Starter
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Re: My first gen Dodge Cummins truck

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Originally Posted by mopar65pa View Post
I had a 90 that had an 89 D71 rear axle (yes a different seal than the 90 D71). I could NEVER get the seals to stop leaking. They dribbled all the time. Twice a year I would have to brake clean everything in the brake assembly.
That's what I ran into. First time I saw it on my 89 I thought the neighbor's dog peed on the wheel but he was too big to pee on the inside, haha.

It had been doing it for a while when I bought my 93 and it took out the rear axle bearings because the oil level got low enough that it no longer leaked so I didn't see it. It was a bad day when I discovered that had happened.

1954 Ford Jubilee
John Deere 180
John Deere 185
John Deere LX188
John Deere 345
92 Dodge Cummins 12 valve dually
84 VW Vanagon getting a Subaru transplant
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