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Welcome to the 3500HD.com forum created October 2009

Author Topic: First HD! 1996 3500HD Crewcab 6.5 with v4500  (Read 2206 times)

JohnnyDiablo

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  • Location: Los Angeles
First HD! 1996 3500HD Crewcab 6.5 with v4500
« on: October 20, 2016, 11:06:17 PM »
Im not new to 6.5 diesel or GMT400 but new to HD!  Motor is frozen but thats typical.  My 4th 6.5. Diesel

I want to shorten the 12ft flatbed to put on a 8ft truck bed or maybe 6.5 foot?

Any tips on that?

John
1996 6.5 Diesel 3500HD
and a few Diesel burbs

someotherguy

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #1 on: October 21, 2016, 08:02:25 AM »
Welcome John,

Pics!

There's a couple ways you can shorten the truck up, certainly a crew cab 12' bed is a ridiculously long truck.  After the kickup behind the cab, an HD's frame rails are dead straight and flat, unlike a regular pickup, making the job somewhat easier.  You have to decide if you want to cut the frame forward of the rear axle and do a hell of a job putting it back together so it's not weakened at that point, or to grind/drill out the rivets for the spring hangers and a few other misc. items and re-drill (a magnetic drill base comes in handy) to move them forward and bolt 'em back in, then cut off the remaining framework.  I'd suggest the second method but that's just me.  Have seen several done this way.

Richard
06 Silverado ISS / 06 Silverado SS / 06 300C SRT8

ED-NY

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #2 on: October 21, 2016, 08:55:04 AM »
Welcome to the forum, there are a couple of threads discussing shortening and relocating the rear axle after drilling out the rivets.  Can't locate them right now but here is one briefing discussing the subject on a reg cab:

http://3500hd.com/index.php?topic=951.0

JohnnyDiablo

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #3 on: October 22, 2016, 12:42:34 PM »
Welcome John,

 ........grind/drill out the rivets for the spring hangers and a few other misc. items and re-drill (a magnetic drill base comes in handy) to move them forward and bolt 'em back in, then cut off the remaining framework. ..........
Richard

Ive gotten alot of practice on popin frame rivits out of a k2500 burb that I was going to stretch....  I cut the extended cab off of a truck and was going to make a chevy mega-mega cab.... but time evaporated.  I was looking at this 3500HD frame wondering if I could weld on the 3ft of extended cab to the crewcab and still clear the kickup on the frame.  Doesnt look as hard on this frame as merging a k2500 burb frame to a k3500 truck frame.  This 3500HD frame is way beefier than a k3500 truck frame!

This is what I was thinking.  I read somewhere that the frame can be lengthened as its bolted together.  Looks like the rear axle subframe would travel in and out of the forward frame.

I searched but found no pictures that really show how the factory created the different wheel bases.  I think from fuzzy pics it looks like the cab frame extends back farther on the longer models?  The rear axle frame portion is all the same?


1996 6.5 Diesel 3500HD
and a few Diesel burbs

j20m715

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  • Posts: 41
  • Location: TEXAS
Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #4 on: October 23, 2016, 10:38:28 AM »
Im not new to 6.5 diesel or GMT400 but new to HD!  Motor is frozen but thats typical.  My 4th 6.5. Diesel

I want to shorten the 12ft flatbed to put on a 8ft truck bed or maybe 6.5 foot?

Any tips on that?

John

Where are you located ?
I'm wanting to do the opposite.
I have an 8-9 foot bed length & want to go to 12.
If your close, I'm willing to trade frames.
Project: 3500HD, 4x4, Crewcab, Cummins

someotherguy

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #5 on: October 23, 2016, 12:15:22 PM »
This is what I was thinking.  I read somewhere that the frame can be lengthened as its bolted together.  Looks like the rear axle subframe would travel in and out of the forward frame.
Nope.  What you're seeing bolted on are the reinforcement plates, which are partially bolted, partially welded.  The frame rails themselves are fully formed front to rear.

I searched but found no pictures that really show how the factory created the different wheel bases.  I think from fuzzy pics it looks like the cab frame extends back farther on the longer models?  The rear axle frame portion is all the same?
Same manner as a pickup truck.  Regular cab vs. extended or crew cab, the area rearwards to the kickup is longer.  It's just that the frame is completely different from a lighter duty pickup frame otherwise.  After that kickup behind the cab, the rails are flat and straight, the only differences between one wheelbase and other would be the position of all the original factory-made holes for mounting things.

Richard
06 Silverado ISS / 06 Silverado SS / 06 300C SRT8

JohnnyDiablo

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #6 on: October 24, 2016, 11:29:33 PM »
Thanks for that Someotherguy! Answered alot of questions.

So My plans are to move the leaf mounts forward and whack the back off.  Might keep that extracab section in the yard and think about it.

You also on any of the Dodge forums?  I married into a 05 Magnum SXT.  Keeping that limping along.  Daughter wants it for a first car. 
1996 6.5 Diesel 3500HD
and a few Diesel burbs

someotherguy

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #7 on: October 25, 2016, 09:26:39 AM »
The only Mopar board I'm on is LXForums; it's pretty active and a lot of really helpful members there.  It actually started out as a Magnum-only forum in the beginning when Magnums were brand new.  I definitely recommend it.

Richard
06 Silverado ISS / 06 Silverado SS / 06 300C SRT8

JohnnyDiablo

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Re: First HD! 1996 3500HD Crewcab 6.5 with v4500
« Reply #8 on: September 27, 2017, 11:20:19 AM »
Swapped a 6.5 in and it runs now.  I'm a busy guy.  I really like this truck!  So far and only moved it 100ft from front yard to side yard.  Trans shifts nicely, it maneuvers good.  Torque is good.
1996 6.5 Diesel 3500HD
and a few Diesel burbs

 


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