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Chevy Silverado and GMC Sierra 1500 Owners

340 messages,  Last post on Nov 01, 2009 at 11:14 AM

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#244 of 340 good improvements by pinn1 Apr 08, 2007 (10:37 pm)
hello everyone new to this site i own a 2001 silverado 4x4 with the 4.8 auto and was looking to make some improvements to it i have had it for 6 years with no real complaints but now it is time to fix some issues with the tranny being sluggish and poor acceleration and was wondering if anyone has done something to their truck that they would say has really improved the overall power and drive ability of the truck such as exhaust,changing plug wires,aftermarket tranny etc. Replies to this message: 93gmcdrivermn (Apr 19, 2007 4:53 pm)
#246 of 340 Synthetics by 03sierra4x4 Apr 16, 2007 (6:50 am)
Has anyone used synthetic fluids in their differentials, transfer cases and motors? Which ones? My '03 Sierra has 62000 miles, and I'm ready to move to the high mileage formulas. Do these systems need to be flushed before changing over? Any help and info will be greatly appreciated. Replies to this message: dlovesb (Sep 22, 2007 5:41 pm) obyone (Sep 22, 2007 6:17 pm)
#247 of 340 20" wheels for 2006 Silverado Z71 by chevymike Apr 17, 2007 (3:47 pm)
I currently have a set of AR wheels (20x8.5) with 285/55/20 Eagle LS tires on my 06 Z71. I like the look of the 20's, but I want a more aggressive looking stance beyond the fender flares. I would like to get a set of 20x10 Motto wheels, but am not sure if any modifications have to be done (I'd rather not shave or lift). Does anyone know if there will be enough turning clearance for the front? I don't want it to hit the upper arms or ball joints. Appreciate the feedback.
#248 of 340 Re: good improvements [pinn1] by 93gmcdrivermn Apr 19, 2007 (4:53 pm)
Replying to: pinn1 (Apr 08, 2007 10:37 pm) Well hello i'm new to this site to, but i think i might be able to stear you in the right direction. I have a 93'Sierra (SLE)Z-71 REG CAB SHORTBOX that i've owned for about 6-1/2 years. I started a restoration project on it about 2-1/2 years ago. As you probably know the TBI 5.7Liter is a big dog! What i did to get some power was install a K&N cold air kit($290), Helix Power Tower Throttlebody spacer($69), Flowtech Shorty Headers($288), High flow cattaletic converter($140), Cat back dual exaust that was on the truck, installed a flowmaster Muffler($85). What a difference it doesn't drive at all like the same truck! It's allmost were it should have been from the factory in my opinion! Next is a Jet Performance Modgule to reprogram the factory CPU and that should get it there. I was told with everything from 240hp stock too around 305 to 310hp. The way it runs now without the Jet Modgule i believe it! For the Tranny i had the same problem 2 years ago. What i did is run some Trans-X through it for about 50 to 100 miles. Drop the pan and replace the Trans filter, i used a hand pump with a long rubber hose down the filler tube and disconected the Trans lines from the trans cooler to get as much old fluid out as i could. Put everything back together and the most important thing when filling with new fluid, get a bottle of "LUCAS" TRANS CONDITIONER & SEALER. I did all that and my Transmission shift's real smooth just like new! At that time the Truck had about 155,000 miles, now has 188,300 and still running strong. About plug wires i used to go through a set every year of the aftermarket cheapies. My advice spend the money and get a set of AC-DELCO wires you wont regret it!
#249 of 340 thanx by pinn1 Apr 21, 2007 (11:35 am)
hey just wanted to drop a thankyou for the advice i appreciate you taking the time and will try your tips.
#250 of 340 fault codes by delboy Apr 21, 2007 (7:30 pm)
can anyone tell me if i can fit an edelbrock 4barrel carb to my 1990 chevy silverado z71 and disregard the engine management sensors. also can anyone give me a list of fault codes and their meanings Many thanks Delboy
#251 of 340 tow/haul switch by billb6 Apr 23, 2007 (6:35 am)
I have a 1999 Silverado and the tow/haul switch is locked in and will not release. I was able for a while to rattle the handle and it would disengage. Now i can't get it to diengage. Is there a way i can take a fuse out or something else to get it disengaged?
#252 of 340 Performance Specs for a 2004 Chevy Silverado by 2007denali Jun 04, 2007 (6:30 pm)
I have a stock 2004 Chevy Silverado LS Ext Cab 285hp, 4.8L V8, with virtually no options (CD/cassette & privacy glass). Does anyone know what the performance specifications are for this truck? I'm going to buy a 2007 GMC Sierra Denali and I want to know how much faster my new truck will be.
#253 of 340 The 4.8 with those mini stock tires isn't too bad by obyone Jun 04, 2007 (10:24 pm)
if you can get those mini tires to grip the road with an empty bed. I would guess your 4.8 would do 0-60 around 8 seconds and the Denali with the 20s would get you around 7.2. Course you would lose to an Escalade. Replies to this message: 2007denali (Jun 06, 2007 9:22 am)

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