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Chevy Silverado and GMC Sierra Accessories and Modifications

160 messages,  Last post on Nov 20, 2009 at 7:43 AM

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What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Performance Mods, Exhaust, Truck

#121 of 160 how can I add mpg to my pickup by ramoses Mar 30, 2008 (9:05 am)
All I can say about my pickup is this: it came "custom" when I bought it for $500.00. The previous owner claims to have put btwn 7 and 8 different trucks into it. None of the parts is OEM. The cab and motor area 'seem' to be a 1978 GMC C1500. It has a 1978 GMC 250 L6 with/ 40k on it, new exhaust,nothing fancy, just a normal exhaust with/O cat;Midas said it was not required as the OEM 78 never had one and this is in SE Colorado. It has a granny-gear 4-speed floor mounted stick shift and from the motor you can see the flywheel or is it the clutch, the big geared wheel on the motor side of the trans. I just replaced the distributor as the old one was rusted out inside and the plates were loose and pivots and springs were missing. There is no power anything, no AC, and no radio. A "friend" chopped off some part of the carburetor as it wasn't being utilized I think he said the choke. The truck came with the wrong air cleaner as it covered half of the butterfly so I replace it with a Spectre cleaner but they get real dirty in a hurry. When I got it it had no bed, so I got one locally for $50.00, it's a 79 Silverado bed. Yes, you get what you pay for and it would need extensive work IF I was to go that way. Beside this a beater that gets me to work and back and is not intended to be a chick-magnet. Long story but maybe now you get the picture. So how can I or a shop increase MPG on this beater?I'm willing to use anything including foreign parts with adapter plates to accomplish this. Ugly is not a problem. Replies to this message: obyone (Mar 30, 2008 9:41 am)
#122 of 160 Re: how can I add mpg to my pickup [ramoses] by obyone Mar 30, 2008 (9:41 am)
Replying to: ramoses (Mar 30, 2008 9:05 am) What kind of mileage are you getting now? That would certainly help since it's a piece together kind of vehicle. Are you sure you want to throw more money at this thing at this point?
#123 of 160 Re: Lifting my GMC [country_boy] by bpari005 Mar 30, 2008 (4:56 pm)
Replying to: country_boy (Mar 29, 2008 10:58 pm) If I could make one suggestion. Just do a six inch suspension lift and be done. I have done several on that body style and they are much easier. Parts cost will be a little higher but the lift not effect the ride as much. A body lift is a cheaper alternative but they don't increase your frame clearance and they take as long if not longer in most cases as a suspension lift. Also torsion keys can effect the ride quality. They stiffen the front end. I would suggest a fabtec 6" lift. They come with everything you need and will provide new shocks and easy step by step instructions as well as all the nuts and bolts. It would probably take you and a buddy two days if you have a litttle know how and a good assortment of tools.
#124 of 160 Upper Sterring Shaft Assembly by seabuckle Mar 31, 2008 (9:43 am)
Anyone got a comment on replacing the standard sterring assembly with the aftermarket zero-play needle bearing U-joint unit from LMC and others? I have an 04 Sierra - had the sterring shaft "exercised" once under warranty. Although the clunk sound went away, the first turn of the wheel each morning still has that not solid feel.
#125 of 160 2008 exhaust system by powderal May 03, 2008 (3:11 am)
is the wierd looking tip on the 08 duramax important to the system or can i change it to come out the side of the truck so i can use a skirt to tow with. it looks like it necks down a bit maybe for back presure for the cleanburn exhaust Replies to this message: bpari005 (May 04, 2008 8:47 pm) dmaxchic (Oct 14, 2008 2:05 pm)
#126 of 160 Re: 2008 exhaust system [powderal] by bpari005 May 04, 2008 (8:47 pm)
Replying to: powderal (May 03, 2008 3:11 am) It is a part of the new 2010 emmissions system on the chevy duramax but it is more for the sound than anything else. replacing or removing it would not effect the performance of the truck. I would not mess with any of the rest of it though all kind of sensors are tied into the exhaust on those new models and I'm sure a dealership would love to charge you an arm and a leg to fix it.
#127 of 160 Adding 2-Way Radio Antenna to Silverado 2500HD by wcviper Jul 02, 2008 (10:10 pm)
I have a 2006 Silverado 2500HD. I need to install an antenna for a 2-way radio and be able to place the coax connector in the cab of the truck.   Can anyone suggest the best method of running the coax cable from the antenna mount located close to the hood spring on the drivers side, into the cab?   Does it need to be run through the firewall? Do I need to drill through the firewall to do this or is there a place designed for third party use?   Is there a way to run the cable underneath the body and up into the cab without drilling through the firewall?   Thanks! Replies to this message: obyone (Jul 04, 2008 6:42 pm)
#128 of 160 Re: Adding 2-Way Radio Antenna to Silverado 2500HD [wcviper] by obyone Jul 04, 2008 (6:42 pm)
Replying to: wcviper (Jul 02, 2008 10:10 pm) You're saying you're going to mount the antenna on the front grill or the hood? There are cables and wires that run through the firewall that you could use or come in through the bottom of the cab via the plugged drain holes. Or drill a new hole and use a grommet.
#129 of 160 K&N Cold Air Intake System by mrual Jan 18, 2008 (12:09 pm)
#130 of 160 K&N Cold Air Intake System by mrual Jan 05, 2008 (11:02 pm)
I have a 2006 silverado 5.3 as everyone else allways looking for better gas mileage just changed the OME Cold Air Intake System with a K&N Cold Air Intake and What a difference way better performance its like the engine can finally breath. both performance and gas mileage shot up .. has anyone else tried the cold air intakes?? Next need to change over to mobil 1 oil see if that does anything for my mileage.. Replies to this message: obyone (Jan 06, 2008 12:43 am) mrual (Jan 06, 2008 11:15 am) obyone (Jan 06, 2008 4:39 pm) and 2 more... skipv (Jan 18, 2008 7:52 am) obyone (Jan 18, 2008 12:09 pm)

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