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A question to all the diesel guru's in the crowd!

doughboy18718

doughboy18718

Diesel Retard!
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The Burg, VA
I have acquired a 94 Yukon that was made by Caterpillar Diesel (or so i have been told it was, plus it has one Cat's stickers on the tailgate). What are the differences, if any, between mine and a regular diesel that was built by GM?

Thanks!
 
Pictures, please: Yukon and engine - most, if not all, Yukons were made by GM - Caterpillar makes utility implement vehicles, such as dozers, graders, 'n stuff like that - even if the Yukon has a blade on the front, doesn't necessarily mean it's a Cat..................
 
Is that a yellow yukon?

Sorry, could not resist!!!

Take a pic as gmctd suggested, of your engine compartment.
 
gmctd said:
Pictures, please: Yukon and engine - most, if not all, Yukons were made by GM - Caterpillar makes utility implement vehicles, such as dozers, graders, 'n stuff like that - even if the Yukon has a blade on the front, doesn't necessarily mean it's a Cat..................
Click to expand...


Are you sure?

Even if it has the CAT mudflaps and front license plate?

I'll be damned....:D

On a serious note - I see tons of guys driving around with CAT or JD stuff on their rigs....I guess they both burn diesel....
 
gmctd said:
Pictures, please: Yukon and engine - most, if not all, Yukons were made by GM - Caterpillar makes utility implement vehicles, such as dozers, graders, 'n stuff like that - even if the Yukon has a blade on the front, doesn't necessarily mean it's a Cat..................
Click to expand...

Thats the story that comes with the truck. It was supposedly a special order from GM and Cat. The engine compartment looks identical to the Sierra that i have, and the truck looks identical to every other Yukon out there. I will get pictures tomorrow for you guys.......
 
Maybe it was a CAT heavy transport escort?

Lots of big companies use 1500 trucks as escorts when they are moving wide loads on semis....
 
Cat fleet truck. Ordered in cat color. Many fleets ordered in their co. color. What does the title say?
 
I have Cat mudflaps. Never heard of a Cat Chevy, cant wait to see the pics!
picture.php
 
To my knowledge caterpillar never made or put an engine in a light duty gm vehichle. As a matter of fact 2 door tahoes/yukons/blazers were special order to begin with. If your has a Cat factory It would be the first I have ever seen. That doesn't mean someone down the line didnt shoehorn a 3208 or something inplace of a blown 6.5 although that would be some seruios shoe hornin....Kinda like a elephant stickin it to a pig...:)
 
wasn't there something about the C3500HD being designed for a tiny I6 cat? (gmctd, i think you told me about this) but the program fell apart, and they just stuck gm diesel in the HD, rather than Cat.

But that is the only thing that i know of about a cat in a GM pickup.
 
Correct, but the HD has a different frame with a solid front axle, like on the larger ton-and-a-half chassis - it is a 4500 in 3500 clothing with low-profile tires on 19" wheels with 5 of 10 lugs, intended to get around commercial licensing for dumps and other heavy utility trucks - the cab sits ~ 6" higher on a oem body-lift, necessary to clear the proposed CAT3606 engine, has a cheesy tin cover below the standard grille panel to hide the resultant gap above the bumper - also usually has the big Rockwell differentials, but at this late date, wysiwyg is the rule - was certainly never a 1500 Yukon - that could have been a CAT company vehicle, or CAT salesman's personal vehicle, or a high muckledy-muck's wife's ride, etc - your title should indicate any peculiarities above and beyond my earlier facetiousness.....................
 
Correct - a 3500HD was never a 1500 Yukon - a really neat one was the rare 3500HD crew cab..................
 
could it be that this truck was a special ordered by CAT, with HD options you couldn't get in a normal Yukon, such as the heavy duty suspension, or a pto output in the transfer case?
 
mattthebrat said:
could it be that this truck was a special ordered by CAT, with HD options you couldn't get in a normal Yukon, such as the heavy duty suspension, or a pto output in the transfer case?
Click to expand...

I was told that its supposed to have a heavy duty suspension as well, but haven't crawled under it yet to see
 
If you share the VIN number I think there are some folks here that can run it through a GM Computer and spit out all the RPO codes so we can see how it was ordered.
 
1500 has 5-bolt hubs - 4wd and Diesel versions get 6-bolt hubs - heavy-duty will have 8-lug hubs, like the 1500 heavy-duty Suburban in some areas, as opposed to the real HD with 5-lugs on 10-lug pattern\diameter - the 3500HD is a 4500 sanctioned for 3500 service\licensing - remember: WYSIWYG, post-production
 
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