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Thread: Front bumper cooling hole
02-19-2011, 03:52 PM #1
Front bumper cooling hole
My 2007 has a solid chrome bumper. I thought it was a 2WD thing to have this, but i have since seen two 4WDs with solid bumpers. Is it an '07 thing, GM discovered they needed more cooling, or maybe an option? I see no evidence of a bumper option on my build sheet other than chrome, and it has a trans cooler.
Just wondering.2007 C-1500 LT RC/SB (294 SS)
02-19-2011, 04:11 PM #2
I think they started using that bumper in 2009, the same time the 6 speed tranny became standard. Just a guess, but I always figured it was just to get more air over the tranny cooler. FYI, my '08 has the solid bumper and 4 speed also. Maybe someone else knows the true reason...-Sal
2008 Silverado 1500 LT 5.3L Crew Cab
Desert Brown Metallic
Century top, Yakima roof rack, 2.5" front lift, Readylift 3" rear blocks, Line-x bedliner, step bars, AVS vent visors, Weathertech floor liners, door sill guards, power tailgate lock, tailgate damper, KC light bar w/ PIAA 525s, rear mini-light bar, rear LED reverse/utility lights, dual batteries (Cole Hersee isolator), DIC upgrade, 20" GM wheels, Cooper Discoverer A/T3s, 26 gal. onboard air (twin Viair 480Cs), Nathan Airchime K3HA / Old cast 2nd Gen. P3 Horns, Graham White valve, bell
Past Chevys: 1985 S-10 ext.cab, 1963 BelAir sedan
02-20-2011, 10:37 AM #3
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- Mar 2007
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I know on earlier model GM's the bumpers with holes were for additional cooling if the truck was a Diesel, havent really checked to see if that holds true for newer model trucks.
02-20-2011, 02:05 PM #4
My '08 4 speed has a solid chrome bumper also...my father's 2009 and my buddy's 2010 have the slot and both are 6 speed. Wonder if the trans does have something to do with it??
________2013 4C Rated__________
02-20-2011, 02:23 PM #5
Hey Alston,i never noticed that you do not have the slots on your bumper.I have the slots on my 09(i know because thats where i hide my block heater cord when i'm not using it)I have a 4 speed also,so i think they just changed it for style reasons.[/SIGPIC]2009 Chevy Silverado LT 1500 EXT CAB 4X4 Vortec 4.8L SFI,K&N air filter,Weathertech Floor Liners ,Weathertech Stone/Bug Deflector, Line X Spray On Bedliner, TruXport Rollup Tonneau Cover, Molded Mudguards, Viper 5701 LE 2 way Security Alarm/Remote Starter, Xm Satelite Radio,BILSTEIN 5100 rear shocks,BILSTEIN 5100 front levelling shocks,READYLIFT 2" rear lift blocks,Goodyear Wrangler Territorys -265/70R 17"
02-20-2011, 03:39 PM #6
Bib B, so you're saying you have the '09 with a 4 speed? All the 09's I've seen were with the 6 speed tranny. I wonder if it was an option, or did they just switch over in the middle of the production year? Maybe there is a 2009, and a 2009 & 1/2 ?? :sarcastic:
02-20-2011, 03:45 PM #7
I'm not sure,i know that my truck was built on Aug.20th/09.I have a 4.8 engine so i always thought that the 4.8s came with a 4 speed tranny.I kind of like the fact that i have a 4.8 with the 4 speed tranny as it sounds that my truck is a rarity compared to what i'm hearing on here.
Last edited by Bigbomber; 02-20-2011 at 03:50 PM.
02-20-2011, 07:56 PM #8
Yeah, that is kind of a rarity combo you got there BigB. I guess that bust the whole 4speed solid bumper idea....
02-21-2011, 03:30 AM #9
02-21-2011, 08:06 AM #10
I have a 2010 4.8L it also has the holes and the 4 speed tranny. Thye all have the holes now and the 4.8L only comes with the 4 speed at least in Ontario. The 5.3L and up have the 6 speed though.
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