K3500 frame dimensions

[Deuce95]

Hi, I have a 2000 k3500 classic style crew long bed dually. I am planning to put a service flatbed on this truck in the future and wanted to see if anyone had a diagram of the rear frame. I have found examples for cab and chassis trucks but nothing for regular frames so far. Thanks.

 

[df2x4]

The GM Upfitter's Guide may have what you're looking for.

https://www.gmupfitter.com/wp-content/uploads/2021/07/1999_LD_CKTruckCurrent.pdf

 

[mattillac]

Welcome to the forum.

Guessing the OP has a K 30943.

Might be helpful to search the above document for that ,with the space between the K and 30943.

That's just a guess though.

Light Duty Prior To 2013 - GM Upfitter

www.gmupfitter.com

Best of luck.

 

[someotherguy]

The regular longbed pickups have a 4" shorter wheelbase than a C&C truck, and the frames are shaped differently as well. So in other words, you can't buy a service bed that was meant for a C&C and expect it to fit your truck, as it won't.

There are service style beds made for regular pickup frames but they are less common, and will be specific to brand and model instead of more universal like ones that fit C&C's.

Richard

 

[Deuce95]

Welcome to the forum.

Guessing the OP has a K 30943.

Might be helpful to search the above document for that ,with the space between the K and 30943.

That's just a guess though.

Light Duty Prior To 2013 - GM Upfitter

www.gmupfitter.com

Best of luck.

I might be wrong, but I believe that is for a 2020 pickup.
Ok so that model number covers a variety of years.
The link from df2x4, is the correct model but still doesn't have the width/ height of the frame, just lengths.

 

[mattillac]

I might be wrong, but I believe that is for a 2020 pickup.
Ok so that model number covers a variety of years.
The link from df2x4, is the correct model but still doesn't have the width/ height of the frame, just lengths.

Page 88 has a couple of measurements.

You must be registered for see images attach

Not sure if it helps, but it looks like the height of the frame and width between the rails is listed for the very rear (inside dimensions).

 

[someotherguy]

Page 88 has a couple of measurements.

You must be registered for see images attach

Not sure if it helps, but it looks like the height of the frame and width between the rails is listed for the very rear (inside dimensions).

That taper at the rear is also one of the big differences between a C&C and a regular pickup. C&C's are ladder straight and 34" apart once they kick up behind the cab, all the way to the rear. The C&C rear axle is also about 8" narrower than a regular dually rear.

Richard

 

[GoToGuy]

Did you look in the OE service manual in frame chapter?

 

[Deuce95]

Did you look in the OE service manual in frame chapter?

Do you have that?

 

[df2x4]

Do you have that?

They're all available here for free. If you don't see the year you need in the first post keep scrolling, other members have added to the collection over time.

88-98 Service Manuals

Over the years I have collected a bunch of GM service literature. Links to PDF Scans of service and STG manuals and a links to the Parts manuals. You'll need the FREE Adobe Acrobat reader to open these files. Get it directly from Adobe here {http://get.adobe.com/reader/} If you're not...

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