Crew Cab and Crew Chassis Cab Wheelbase Clarification - The 1947 - Present Chevrolet & GMC Truck Message Board Network

arrover · 08-07-2012, 04:07 PM

Is it true that a crew cab and a crew chassis cab will have the same wheelbase (164.5")? So if I bought a crew cab with a service bed on it, a regular long bed should bolt right on (with correct cab/bed gap) even if it was a crew chassis cab right?

GM72K10 · 08-07-2012, 04:18 PM

Quote:

Originally Posted by arrover

Is it true that a crew cab and a crew chassis cab will have the same wheelbase (164.5")? So if I bought a crew cab with a service bed on it, a regular long bed should bolt right on (with correct cab/bed gap) even if it was a crew chassis cab right?

Yup unless an after market chassis builder modified it. I take it the service bed is an 8 footer.

*nekkidhillbilly* · 08-07-2012, 08:09 PM

the car haulers where longer if it was one of them

WarBeard · 08-07-2012, 11:50 PM

Tape measure time!

arrover · 08-08-2012, 11:10 AM

Thanks for the help guys. In my searching I have come across several flatbed and service body crew cabs. They are usually hours away from me so I wanted to determine if the wheelbases are the same before I drive a long way. I will definitely measure them when I actually go look.

Keith Seymore · 08-08-2012, 11:27 AM

Depends.

There were three Cab Chassis model wheelbases available from the factory; C30903, C31003 and C31403

The 309 would be the same as the pickup but the other two would be longer.

K

arrover · 08-08-2012, 11:39 AM

Thanks for the info Keith. Your input is always valuable. So, just to be clear, are you saying that the C30903, C31003, and C31403 are all crew cab body styles?

Here is a link to one of Slosh's pages: http://brochures.slosh.com/dimension...k-page-149.jpg . It does show the C309 as having the 164.5" wheelbase. What are the wheelbases of the C31003 and C31403?

Thanks alot for the help!

Keith Seymore · 08-08-2012, 01:42 PM

Quote:

Originally Posted by arrover

Thanks for the info Keith. Your input is always valuable. So, just to be clear, are you saying that the C30903, C31003, and C31403 are all crew cab body styles?

Here is a link to one of Slosh's pages: http://brochures.slosh.com/dimension...k-page-149.jpg . It does show the C309 as having the 164.5" wheelbase. What are the wheelbases of the C31003 and C31403?

Thanks alot for the help!

Actually, I zoned a little bit when I typed the model codes, since for crew cab it would be C30943, C31043 and C31443.

I can't find my wheelbase chart currently but as soon as I do I'll post em up.

K

arrover · 08-08-2012, 05:52 PM

Thanks for correcting those model numbers Keith and if you could find the wheelbase numbers for those it would be great. Thats really what I'm interested in.

GM72K10 · 08-08-2012, 06:09 PM

CK30943 164.5 wheelbase crew cab
CK 31003 135.5 cab chassis
CK 31403 159.5 cab chassis
C31043 is a current model wheelbase not available in square body?
C31443 same thing, current models only?

spencer_41188 · 08-08-2012, 07:16 PM

oh looks like someone likes the look of my truck

my 87 crew cab chassis was a fire rescue truck. my avitaris one pic theres another pic in my profile i didnt do anything to the frame the bed bolted right up no problems i just retubbed the bed to clear the duals

80SPORT · 08-08-2012, 10:51 PM

In the crew cab trucks the frame length is all the same;it was actually a problem to mount a service body or a wrecker on a chevy crewcab as they were onlly 56 inch cab axle...same as a pickup.
The reg cabs were available in 56 cab axle(with or without box) 60 inch cab axle (the industry standard for service bodies swb)or 84 inch cab axle

Any crewcab (except modified frame units) is an easy unit to drop a box on.

If you want to use the factory dually box you need the wide track dana 70 to replace the narrow 14 bolt used on chassis cabs

arrover · 08-09-2012, 01:51 PM

Thank you for the post 80Sport. I appreciate your input. I'm still a little confused because Keith seems to be saying that there were three different crew cab wheelbases.

Keith Seymore · 08-09-2012, 02:02 PM

I'm going to defer to 80Sport on this one.

I'm a little distracted because I'm trying to keep the assembly plant going (...running out of steering wheels...) and because I can't find my chart.

Did you have a specific model year you were asking about? That might help us be a bit more precise.

K

arrover · 08-09-2012, 02:51 PM

No specific year. I do appreciate all the input on this thread. Thanks guys!

Darkrider · 10-23-2012, 02:33 AM

Kind of late on this but I have a lead on an '89 crew cab cab and chassis truck (squarebody style) just wondering if a standard box will drop onto the truck? From my understanding the c+c axle is more desirable for running semi wheels on these trucks, now would I need to run a normal dually bed to run semi wheels on the c+c?
Posted via Mobile Device

08-07-2012, 04:07 PM	#1
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Crew Cab and Crew Chassis Cab Wheelbase Clarification Is it true that a crew cab and a crew chassis cab will have the same wheelbase (164.5")? So if I bought a crew cab with a service bed on it, a regular long bed should bolt right on (with correct cab/bed gap) even if it was a crew chassis cab right?

08-07-2012, 08:09 PM	#3
nekkidhillbilly Account Suspended Join Date: Apr 2009 Location: hazard, ky Posts: 1,674	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification the car haulers where longer if it was one of them

08-07-2012, 11:50 PM	#4
WarBeard Registered User Join Date: Jul 2008 Location: Show low,az Posts: 808	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Tape measure time! __________________ 1978 C10 Silverado Big 10 350/350.. play toy 1990 V1500 Suburban 350/700r4..Daily driver 1987 K10 Silverado 383/400.. Wife's rig WRECKED! 1989 V2500 Suburban 350/400.. SOLD! 1974 C10 Custom10 LWB 350/350.. SOLD! 1974 C10 Custom10 SWB 350/400.. SOLD! 1999 Silverado Z71 LS1.. Wife's rig WRECKED! On the hunt for a new project....... I'm a Chevy guy.....I'm just not a "NEW" Chevy guy.

08-08-2012, 11:10 AM	#5
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Thanks for the help guys. In my searching I have come across several flatbed and service body crew cabs. They are usually hours away from me so I wanted to determine if the wheelbases are the same before I drive a long way. I will definitely measure them when I actually go look.

08-08-2012, 11:27 AM	#6
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,179	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Depends. There were three Cab Chassis model wheelbases available from the factory; C30903, C31003 and C31403 The 309 would be the same as the pickup but the other two would be longer. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

08-08-2012, 11:39 AM	#7
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Thanks for the info Keith. Your input is always valuable. So, just to be clear, are you saying that the C30903, C31003, and C31403 are all crew cab body styles? Here is a link to one of Slosh's pages: http://brochures.slosh.com/dimension...k-page-149.jpg . It does show the C309 as having the 164.5" wheelbase. What are the wheelbases of the C31003 and C31403? Thanks alot for the help!

08-08-2012, 05:52 PM	#9
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Thanks for correcting those model numbers Keith and if you could find the wheelbase numbers for those it would be great. Thats really what I'm interested in.

08-08-2012, 06:09 PM	#10
GM72K10 Next! Join Date: Jan 2003 Location: Eastern Pa. Posts: 2,479	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification CK30943 164.5 wheelbase crew cab CK 31003 135.5 cab chassis CK 31403 159.5 cab chassis C31043 is a current model wheelbase not available in square body? C31443 same thing, current models only? __________________ 86 K30 CUCV M1028A1 86 K30 CUCV M1028a2 dually 86 K30 C&C 6.2 4:56s, 4M, 11,000 gvw, ex fire truck, now lowboy dump More square bodies and CUCVs than I care to admit to 2020 Silverado K3500HD Work truck

08-08-2012, 07:16 PM	#11
spencer_41188 Registered User Join Date: Oct 2011 Location: fortwayne, indiana Posts: 209	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification oh looks like someone likes the look of my truck my 87 crew cab chassis was a fire rescue truck. my avitaris one pic theres another pic in my profile i didnt do anything to the frame the bed bolted right up no problems i just retubbed the bed to clear the duals __________________ 88 gmc v3500 bonus cab classy chassy conversion, 454, nv4500, np205, dana 60 front with spool, 14 bolt ff cac rear with locker.

08-08-2012, 10:51 PM	#12
80SPORT Registered User Join Date: Mar 2008 Location: red deer alberta Posts: 777	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification In the crew cab trucks the frame length is all the same;it was actually a problem to mount a service body or a wrecker on a chevy crewcab as they were onlly 56 inch cab axle...same as a pickup. The reg cabs were available in 56 cab axle(with or without box) 60 inch cab axle (the industry standard for service bodies swb)or 84 inch cab axle Any crewcab (except modified frame units) is an easy unit to drop a box on. If you want to use the factory dually box you need the wide track dana 70 to replace the narrow 14 bolt used on chassis cabs

08-09-2012, 01:51 PM	#13
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Thank you for the post 80Sport. I appreciate your input. I'm still a little confused because Keith seems to be saying that there were three different crew cab wheelbases.

08-09-2012, 02:02 PM	#14
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,179	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification I'm going to defer to 80Sport on this one. I'm a little distracted because I'm trying to keep the assembly plant going (...running out of steering wheels...) and because I can't find my chart. Did you have a specific model year you were asking about? That might help us be a bit more precise. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

08-09-2012, 02:51 PM	#15
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification No specific year. I do appreciate all the input on this thread. Thanks guys!

10-23-2012, 02:33 AM	#16
Darkrider Registered User Join Date: Sep 2011 Location: Canada Posts: 86	Re: Crew Cab and Crew Chassis Cab Wheelbase Clarification Kind of late on this but I have a lead on an '89 crew cab cab and chassis truck (squarebody style) just wondering if a standard box will drop onto the truck? From my understanding the c+c axle is more desirable for running semi wheels on these trucks, now would I need to run a normal dually bed to run semi wheels on the c+c? Posted via Mobile Device __________________ '84 Chevy Custom Deluxe 10 "Frankenstein" http://67-72chevytrucks.com/vboard/s...d.php?t=690587 '69 Chevy C10



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