Labor Day Putting down your wrenches or time for
MORE wrenching? 
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Mod | | | Forums66 Topics128,005 Posts1,055,261 Members48,418 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Oct 2012 Posts: 307 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 307 | Trying to hunt up another updraft manifold for my 58 step van. Does anyone know which 235/261 trucks had these manifolds?
1958 Chevy Grumman Olson step van
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | COEs (and maybe Forward Control, Tilt Cab, etc) - someone who knows Task Force trucks might come up with better information/suggestions. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | GMC's had updrafts on COE's.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Oct 2012 Posts: 307 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 307 | Just Chevy models. GMC types won't fit I've read.
1958 Chevy Grumman Olson step van
| | | | | Joined: Mar 2004 Posts: 6,212 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,212 | You call your truck a "Step Van", but Step Vans made by Chevrolet didn't come with updraft carburators, they were all down draft. The Forward Control chassis did have the updraft and they were sold to outside companies like Boyer and Grumman who made bread/milk trucks out of them. Step Vans are models 3445, 3545 & 3745 Forward Controls are models 3442, 3542, 3742, 6242 & 6642. To the best of my knowledge they all got the 235 Thriftmaster Special engine, so no 261's during the TF years got the updraft carburators. So, what model is your truck? Mike B  | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | I know GMC's won't fit Chevies, just wanted to inform.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Nov 2014 Posts: 70 'Bolter | | 'Bolter Joined: Nov 2014 Posts: 70 | I got one in Cedartown, Ga. and will send you a private message with my phone #.
ESum
| | | | | Joined: Apr 2005 Posts: 7,440 Bolter | | Bolter Joined: Apr 2005 Posts: 7,440 | Buying and selling in the garage Forums is prohibited. The Swap Meet or Private Message if you don’t want the thread deleted. Thanks
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
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