Isuzu NPR 4x4 Beast! - Rebelzilla by Rebel Off Road
- Thread starter REBEL OFF ROAD
- Start date
CYRUS888
Observer
Unless your talking about a Unimog where the frame is part of the suspension
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CYRUS888
Observer
Yes I agree that it is NOT a suspension but your previous statement implies that a truck frames should be rigid where as the Unimog does not which is all I'm pointing out. Mercedes built the unimog thinking out of the box which the Rebel crew are doing as well in their own right.
I should have used the word "AID" with the suspension instead of "PART" of it's suspension which I think is an amazing engineering feat. So when you say that your glad to see some gets it that a frame has to be rigid, I guess count me as one of those that don't get it...
Sorry rebel crew... Back to the regular chanel of awesomeness
javajoe79
Fabricator
I've been reading up on modification done to these chassis and it seems that the factory is very concerned about where you weld to the frame. Looking at all the stock structure on my NPR and every bit is bolted or riveted. It seems as if this is the factory covering their own asses because they don't trust others to modify their truck. Am I correct on that? Seems like there shouldn't be an issue if the welds are solid.
proper4wd
Expedition Leader
Well here's the deal... medium/heavy truck frames like the NPR are designed to moderately flex and twist. Welding to the frame can create unpredictable stress risers and heat damage to the metal, leading to cracking and failure in those areas as the frame flexes normally.
Not sure what the long term service life will be of the truck in this thread, but it sure as hell doesn't fall into the design criteria for a medium duty box truck. So it's a bit of unknown territory.
Not sure what the long term service life will be of the truck in this thread, but it sure as hell doesn't fall into the design criteria for a medium duty box truck. So it's a bit of unknown territory.
CYRUS888
Observer
You didn't just say frames were designed to flex did you?! Now DzlToy would be all over you :coffeedrink:
REBEL OFF ROAD
Supporting Sponsor
Wanted to share the steps that were designed to get into the rear cabin. Unfortunately these photos don't show the action that these stairs perform when folded in. You probably can tell that they fold flat when raised. We'll post a video of the stairs performing the folding actions very soon.
REBEL OFF ROAD
Supporting Sponsor
Here's and update on the cage that has been installed inside of Rebelzilla. You can also see the headliner that's been put in recently as well. Its a micro suede that has a black finish. You also might be able to see the wire harness that's hanging from the headliner. We'll go more into that on a separate post.
24HOURSOFNEVADA
Expedition Leader
Outstanding build with top notch components, I'm loving every post. I'm curious if you did a pro/con list against starting with a Stewart & Stevenson/Brazo's truck vs the NPR? I ask because I'm keenly interested in the S&S truck, Cat engine, Allsion trans, CTIS as a complete package off the assembly line.
REBEL OFF ROAD
Supporting Sponsor
Carpet is being installed. It's crunch time here at the shop. Putting the final touches so she can head off to SEMA. We'll be dumping tons of photos over the next two weeks as well as information related to SEMA (Scheduling meetings).
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