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Re: '75 J-20 service truck

Posted: Thu May 11, 2017 7:40 am
by jaber
Had a slow work week, so got a few things knocked out.
Cut engine mounts off, notch frame for ac comp, cut and replaced firewall, mounted steering column and pedal assembly, and notched rear cab to clear frame.
I have to lengthen the steering shafts, and relocate the fuel filter housing as it hits the hydro booster. As usual, here's way too many pics... :-bd

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Re: '75 J-20 service truck

Posted: Thu May 11, 2017 7:42 am
by REDONE
Lookin good! Still a long ways to go to be ready for Ouray! :-bd

Re: '75 J-20 service truck

Posted: Sun May 14, 2017 6:53 pm
by jaber
Ok, throttle pedal extended, now gets full travel, steering shaft extended, shifter shortened, cut inner fenders out, ready for something custom. Radiator is right up against the fan clutch. I'm hoping this truck had a lift and I can find a stock set of front Springs, as it sits now, I won't be able to see into my top boxes. At least it looks like the hood will fit...

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Re: '75 J-20 service truck

Posted: Tue May 16, 2017 9:54 pm
by jaber
Intercooler mock up...

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I did 1" spacers between the hinge and hood for venting. At times, the hood would dance side to side nicely. I found where it was flexing...

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Re: '75 J-20 service truck

Posted: Tue May 16, 2017 10:03 pm
by tedlovesjeeps71
That's one thing about a diesel... all that shaking will surely show ya any stress points or bolts you forget to torque down.


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Re: '75 J-20 service truck

Posted: Tue May 16, 2017 10:13 pm
by jaber
That was the caddy engine that did that...

Re: '75 J-20 service truck

Posted: Tue May 16, 2017 10:34 pm
by tedlovesjeeps71
jaber wrote:That was the caddy engine that did that...
?? 500??


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Re: '75 J-20 service truck

Posted: Tue May 16, 2017 10:41 pm
by jaber
425cid, but think the worn out suspension played a part in it.
It's all in the thread a few pages back...

Re: '75 J-20 service truck

Posted: Tue May 16, 2017 10:51 pm
by tedlovesjeeps71
Ah... gotcha. Interesting that it wore out the suspension. I recall (I think?) the 472/500 being not much more than a small block Chevy. Is the 425 much more?


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Re: '75 J-20 service truck

Posted: Wed May 17, 2017 5:25 am
by jaber
The suspension has been rode hard, then I put the caddy in. Part of the reason I'm doing frame and all.

Re: '75 J-20 service truck

Posted: Sun May 21, 2017 1:17 pm
by dbabicky
You Arizona guys must be afraid of running out of fuel. LOL !! My 1975 J-10 came from Arizona also and the original owner installed a fuel tank behind the seat of mine also. I removed it. Not because of any safety concerns,( I drove a 1972 Ford F100 with the factory tank behind the seat for years), just because I needed the leg room. The original fuel tank is enough for me up here in Wisconsin.

Re: '75 J-20 service truck

Posted: Wed May 24, 2017 3:39 pm
by Gumby
We Arizona folks like to get to the next watering hole... so we carry more gas.

Re: '75 J-20 service truck

Posted: Wed May 24, 2017 4:18 pm
by tedlovesjeeps71
Gumby wrote:We Arizona folks like to get to the next watering hole... so we carry more gas.
Only way to survive the desert... Image

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Re: '75 J-20 service truck

Posted: Sat May 27, 2017 2:23 pm
by jaber
Why does it seem like most diesel build threads get interrupted and put on hold?!?!?!
Just found out I am going to have to move out of this house after 11 years. Luckily the truck is at a buddy's shop so it won't have to be shuffled around, but, that means I won't have any "free" time until I figure out where we're going to land. Bear with me, I'll be back at it ASAP... :banghead: :banghead: :banghead:
Are there any real estate investors on the forum interested in helping???

Re: '75 J-20 service truck

Posted: Mon Jun 26, 2017 6:47 pm
by jaber
So today I made progress. I'm friends with the owner of a local tow company and stopped to talk to him. He had what he thought was an '03 chassis in the back 40 that had a 26 gal gas tank in it, the straps were very close to the original and the pump cap was the same 6.5" so I drug it out and hauled it out to the truck. I drained 7 gals out of it, wiped the inside clean, and transferred the remaining diesel into it, and the pick up and gauge fit like a glove. I now have that part answered... :-bd :-bd

Re: '75 J-20 service truck

Posted: Tue Jun 27, 2017 12:42 am
by az chip
Awesome! Back at it. Glad you got landed. Hope it went well.

Re: '75 J-20 service truck

Posted: Tue Jun 27, 2017 5:25 am
by jaber
Haven't actually landed, just had to do something...

Re: '75 J-20 service truck

Posted: Sun Jul 09, 2017 7:44 am
by jaber
Well, I made some forward progress on it yesterday. The stock Jeep radiator was going to fit, but would have to have several mods to work, plus I discovered that it's leaking. After lots of mental fabing, I was able to trim and adjust the Dodge radiator support to fit in place of the Jeep one. It is going to work out VERY well. Today I'm going to finish the front clip body mounts and finish grafting the Jeep valance and rad support to the dodges. This is going to make replacement parts much easier to find and not have to be modified to fit. Even the stock hoses will fit.

Damn Photobucket... :banghead: :banghead: :banghead:

Re: '75 J-20 service truck

Posted: Sun Jul 09, 2017 5:42 pm
by jaber
This weekend's fiddling...

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Re: '75 J-20 service truck

Posted: Mon Jul 10, 2017 6:43 pm
by jaber
Front mounts made.

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