Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BBEEP · 08-28-2006, 12:24 AM

Is there some kind of kit out there to narrow the track on my 78 GMC Dually to make it fit correctly under my 52 GMC 19 foot bus? I want to part out the pickup and start working on the swap this winter.
I also want to do airbags so I can "lay frame". Should I do all the trick suspension stuff before I pull the pickup body?, after I pull the body and before it goes under the bus? , or after I have it installed under the bus?

*trkklr77* · 08-28-2006, 01:00 AM

what is the track width of the bus? should be at least 77" like the dually d60.

i would say go with the dually front and jamb a dually d70 or 14b in the rear, k.i.s.s.

you can always swap to single wheel setup and that will suck it in 10" to 67" which is what you would see on any regular non dually truck.

BBEEP · 08-28-2006, 12:48 PM

I'm having a difficult time measuring right now because of all the hornets nests! Anyway, here are the measurements, outside of tire to outside, stock tires on both the bus and the 78: 78 GMC, front--72 inches, back--92 inches. 52 GMC Bus, front 66--inches, back--86 inches. The back will fit fine, there is plenty of room, and I want to keep the dually wheels in back.
I've heard about some kind of "kit" to narrow the track in front (that includes shorter control arms) but doesn't change geometry.
John

*trkklr77* · 08-28-2006, 11:38 PM

i miss read it at first and was think 4x4 stuff, either way you you cant go with the single wheel setup from say a 2wd 3/4t it would still be to wide.

you couldnt blow the fenders out and stance it and keep the dually front stuff?

BBEEP · 09-06-2006, 04:33 PM

Bump

84 400 · 09-06-2006, 05:33 PM

wow sounds like a cool project man! i can't help much with this stuff but do you have pics of the bus? sounds really cool and what is your goal?

BBEEP · 09-06-2006, 05:59 PM

84 400
Do a search for my user name, bbeep, it will bring up pics! I plan to make it "lay frame" with bags. Ultimate goal--as my son, Josh's, bands tour bus! callingsimon.com
John

08-28-2006, 12:24 AM	#1
BBEEP Junior Member Join Date: Feb 2005 Location: EUGENE, OREGON Posts: 504	Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! Is there some kind of kit out there to narrow the track on my 78 GMC Dually to make it fit correctly under my 52 GMC 19 foot bus? I want to part out the pickup and start working on the swap this winter. I also want to do airbags so I can "lay frame". Should I do all the trick suspension stuff before I pull the pickup body?, after I pull the body and before it goes under the bus? , or after I have it installed under the bus?

08-28-2006, 01:00 AM	#2
trkklr77 Account Suspended Join Date: Aug 2006 Location: vacaville ca, because it as far from indy as i can be Posts: 777	Re: Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! what is the track width of the bus? should be at least 77" like the dually d60. i would say go with the dually front and jamb a dually d70 or 14b in the rear, k.i.s.s. you can always swap to single wheel setup and that will suck it in 10" to 67" which is what you would see on any regular non dually truck.

08-28-2006, 12:48 PM	#3
BBEEP Junior Member Join Date: Feb 2005 Location: EUGENE, OREGON Posts: 504	Re: Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! I'm having a difficult time measuring right now because of all the hornets nests! Anyway, here are the measurements, outside of tire to outside, stock tires on both the bus and the 78: 78 GMC, front--72 inches, back--92 inches. 52 GMC Bus, front 66--inches, back--86 inches. The back will fit fine, there is plenty of room, and I want to keep the dually wheels in back. I've heard about some kind of "kit" to narrow the track in front (that includes shorter control arms) but doesn't change geometry. John

08-28-2006, 11:38 PM	#4
trkklr77 Account Suspended Join Date: Aug 2006 Location: vacaville ca, because it as far from indy as i can be Posts: 777	Re: Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! i miss read it at first and was think 4x4 stuff, either way you you cant go with the single wheel setup from say a 2wd 3/4t it would still be to wide. you couldnt blow the fenders out and stance it and keep the dually front stuff?

09-06-2006, 04:33 PM	#5
BBEEP Junior Member Join Date: Feb 2005 Location: EUGENE, OREGON Posts: 504	Re: Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! Bump

09-06-2006, 05:33 PM	#6
84 400 Sb 400 club Join Date: Nov 2005 Location: NH / MA Posts: 2,745	Re: Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! wow sounds like a cool project man! i can't help much with this stuff but do you have pics of the bus? sounds really cool and what is your goal? __________________ 1984 chevy c10, built 400sb,.(SOLD) 77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363 1956 Willys Wagon (327 chevy) Project (Now Buick 225) 1980 Corvette L-48 4 speed 1992 Mustang GT built 5.0 5 speed 1985 C10 LWB Sold 1982 K10 SWB plow truck Parted out 1986 D30 M1028 fire brush truck Parted out

09-06-2006, 05:59 PM	#7
BBEEP Junior Member Join Date: Feb 2005 Location: EUGENE, OREGON Posts: 504	Re: Narrowing front end on 78GMC dually to go under 52GMC Bus? FEEDBACK PLEASE! 84 400 Do a search for my user name, bbeep, it will bring up pics! I plan to make it "lay frame" with bags. Ultimate goal--as my son, Josh's, bands tour bus! callingsimon.com John



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