'75 J-20 service truck
- Stuka
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- Location: Sonora, CA
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Re: '75 J-20 service truck
Wow, your truck weighs double what mine does. I think mine was in the 4200 range last time I weighed it.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
- jaber
- Vendor
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- Location: Chino Valley, Az.
Re: '75 J-20 service truck
Yah, with the bed and tools I'm almost to the Dodges GVWR...Stuka wrote:Wow, your truck weighs double what mine does. I think mine was in the 4200 range last time I weighed it.
NADA puts the curb weight @ 4985 #s.

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Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- swampedge
- Posts: 340
- Joined: Mon Jun 11, 2012 5:21 pm
- Location: Melbourne,Fl.
Re: '75 J-20 service truck
Very cool build. The air channel is genius.
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You really are judged by the dogs you have!
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
Not much has happened other then driving the hell out of it and gathering parts. It's been put back into DD service since Xmas eve.
I got a set of air bags for the rear, but found a writeup for a second a.c. compressor so gathering parts to put that together before I install them.
Lost my lift pump 2 weeks ago, so got a new FASS pump, only took 20 mins to swap out. 2 screws and the plastic inner fenders come off and I have full access to the side of the block. Why can't everything be this easy to work on???
Last 2 fill ups I was averaging 16 MPG, guess I need to "try" to keep my foot out of it. It's hard when it moves this ole truck around like a sports car on crack...
I got a set of air bags for the rear, but found a writeup for a second a.c. compressor so gathering parts to put that together before I install them.
Lost my lift pump 2 weeks ago, so got a new FASS pump, only took 20 mins to swap out. 2 screws and the plastic inner fenders come off and I have full access to the side of the block. Why can't everything be this easy to work on???
Last 2 fill ups I was averaging 16 MPG, guess I need to "try" to keep my foot out of it. It's hard when it moves this ole truck around like a sports car on crack...
Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
Got to put her to the test today. Ran great, but would be looking to chip it if I did a lot of towing.




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Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- swampedge
- Posts: 340
- Joined: Mon Jun 11, 2012 5:21 pm
- Location: Melbourne,Fl.
Re: '75 J-20 service truck
jaber wrote:Got to put her to the test today. Ran great, but would be looking to chip it if I did a lot of towing.
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Looking good
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You really are judged by the dogs you have!
- jaber
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- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
It's going to be a cool summer...
THANK YOU SONORAED, YOU ROCK...
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THANK YOU SONORAED, YOU ROCK...

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Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- 66stepside
- Posts: 3044
- Joined: Sat Oct 13, 2012 9:59 pm
- Location: Spokane Valley, WA.
Re: '75 J-20 service truck
jaber wrote:It's going to be a cool summer...
THANK YOU SONORAED, YOU ROCK...
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You lucky dog! Nice score!
1966 J3000, 401, T-18, Dana 300
1962 Jeep J-200, 4.0, AW4, DANA 300 Father/Son Project
1954 Willy’s Truck: Stock
1967 Quadcab Thriftside
1968 M715: Stock
1962 Jeep J-200, 4.0, AW4, DANA 300 Father/Son Project
1954 Willy’s Truck: Stock
1967 Quadcab Thriftside
1968 M715: Stock
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
I had to do some horse trading with my wife, she's getting a new kitchen, I know she scored...
Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- 66stepside
- Posts: 3044
- Joined: Sat Oct 13, 2012 9:59 pm
- Location: Spokane Valley, WA.
Re: '75 J-20 service truck
Seems like a fair trade, you’ll probably benefit from the new kitchen as well- happy spouse, happy house. 



1966 J3000, 401, T-18, Dana 300
1962 Jeep J-200, 4.0, AW4, DANA 300 Father/Son Project
1954 Willy’s Truck: Stock
1967 Quadcab Thriftside
1968 M715: Stock
1962 Jeep J-200, 4.0, AW4, DANA 300 Father/Son Project
1954 Willy’s Truck: Stock
1967 Quadcab Thriftside
1968 M715: Stock
-
- Posts: 26
- Joined: Fri Jun 26, 2015 6:44 pm
Re: '75 J-20 service truck
66stepside wrote:Seems like a fair trade, you’ll probably benefit from the new kitchen as well- happy spouse, happy house.
Hopefully his waistline will.

- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
Lol, I'm lucky I have a high metabolism...
Last Friday I developed a squeak in the rear chasing parts for my wife's ZJ. Before I got home, it turned into a grinding noise and heard a couple of pops like it was spitting pieces out. Got it in the air and the pass side had come apart and ground all but 1 spring to pieces, and there were 2 flat spots on the adjuster wheel. IT IS SO BITCHIN TO GO TO THE MCPARTS HOUSE AND GET EVERYTHING OFF THE SHELF! They had a complete small parts kit and it's all New in there now.
Now, to find time to install this ac....
Last Friday I developed a squeak in the rear chasing parts for my wife's ZJ. Before I got home, it turned into a grinding noise and heard a couple of pops like it was spitting pieces out. Got it in the air and the pass side had come apart and ground all but 1 spring to pieces, and there were 2 flat spots on the adjuster wheel. IT IS SO BITCHIN TO GO TO THE MCPARTS HOUSE AND GET EVERYTHING OFF THE SHELF! They had a complete small parts kit and it's all New in there now.
Now, to find time to install this ac....
Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- fulsizjeep
- Moderator
- Posts: 4367
- Joined: Sun Nov 06, 2011 7:21 am
- Location: Mancos Valley, CO
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Re: '75 J-20 service truck
I don't get it. Right off the shelf? 

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Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20
Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck




Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- TheRebel
- Posts: 74
- Joined: Wed Apr 11, 2018 11:20 am
Re: '75 J-20 service truck
How am I only just seeing this?? Thank you so much for documenting your build so thoroughly.
So after 6 months of DD, are you still happy? Anything that you wish you did/didn't?
What's the most you've towed to date?
Thanks a billion!
So after 6 months of DD, are you still happy? Anything that you wish you did/didn't?
What's the most you've towed to date?
Thanks a billion!
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
Still grinnin from ear to ear.
At this point there's nothing in what I've done I'd change, but a few things left to do. Still want to drop the front 3", but im looking for a set of stock front springs to cut. I just got a 1/2" plate of steel to build the mount for the second a/c compressor where the front engine hoisting eye is for on board air, then I have bags for the rear and air horns. I also need to get the VA system in, it's getting warm....
Hard to say on heaviest, probable the 01 v8 grand Cherokee on a tow dolly.
And last fill up I got 17.3 mpg...
God I love my truck....
At this point there's nothing in what I've done I'd change, but a few things left to do. Still want to drop the front 3", but im looking for a set of stock front springs to cut. I just got a 1/2" plate of steel to build the mount for the second a/c compressor where the front engine hoisting eye is for on board air, then I have bags for the rear and air horns. I also need to get the VA system in, it's getting warm....
Hard to say on heaviest, probable the 01 v8 grand Cherokee on a tow dolly.
And last fill up I got 17.3 mpg...

God I love my truck....
Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- TheRebel
- Posts: 74
- Joined: Wed Apr 11, 2018 11:20 am
Re: '75 J-20 service truck
Was it pretty insane to try and get her registered/insured? Is it still considered salvage?
Sorry if my questions seem simple, I’m fairly new to the car restoration scene.
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Sorry if my questions seem simple, I’m fairly new to the car restoration scene.
Sent from my iPhone using Tapatalk
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
It has the same Jeep VIN plate under the hood and door jamb, and I'm running the same historic plates it's always had. I just keep renewing the tags online. We are a non-emissions county now, and even if we did, it should be cleaner then the stock.
Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- jaber
- Vendor
- Posts: 2982
- Joined: Sat Aug 27, 2011 5:24 pm
- Location: Chino Valley, Az.
Re: '75 J-20 service truck
My trans kept leaving little drips under the rear aluminum case and the last couple weeks it turned into small puddles. Found a cast replacement on Ebay for $85 shipped and no more worrying about its fluid level. Did the seals in t case while it was out. Also found it already has a 5th gear lock nut, so that's another worry off my mind...

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Jeff
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
'46 cj3a
'51 Willys p/u
'51 Willys Parkway Conversion
'74 CJ5
'75 J-20 Wrecker
'75 J-20 Cummins service truck
'77 J-10 p/u
'79 Cherokee
'88 Grand Wagoneer
http://s252.photobucket.com/albums/hh14/jeffaber/
- sonoraed
- Vendor
- Posts: 345
- Joined: Sun Apr 07, 2013 7:38 am
- Location: Sonora,Ca
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Re: '75 J-20 service truck
jaber wrote:It's going to be a cool summer...
THANK YOU SONORAED, YOU ROCK...
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HEY Jeff did you get that a/c installed?
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