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GMC Sierra 1500

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Q: How to clean and lube slip yoke on 99 GMC Sierra 1500 truck?
I need to know how to clean and lubricate the slip yoke on my 99 GMC Sierra 1500 truck. I am a repair novice, but I am wondering if I can do this on my own. I know the lubriant I need (GM Special Lubriant #12345879), but I do not know how to clean and lubricate the slip yoke. If someone would be so kind as to walk me through the process step-by-step (perhaps with service manual?), I would greatly appreciate it. Thanks.

A: just sand it down with any sandpaper and then use any grease or oil to lube it. Like the other guy said if not rusted no need to clean it. You dont need a special lube they just do that to make money. Just like on lawnmowers they say use expensive oil all you have to use is regular SAE 30

Q: Would I have to buy new bigger shocks for a 6in lift on a 2000 GMC Sierra 1500 2WD?
I can buy a 6inch lift for my 2000 GMC Sierra 1500 2wd truck for a few hundred bucks. It consists of 3 in lift coils, 3 inch lift spindles, and 5” lift blocks with u-bolts. I was just wondering if I needed larger shocks because the stock ones will be maxed out. If I do please name what size and brand and stuff. Thanks!

A: yes you would. I reccomend rancho , when you order your shocks tell them what your situation is,,

Q: can you add a lift kit to a 08 gmc sierra 1500?
can you add a lift kit to a 08 gmc sierra 1500? eventhough it has the fuel management? and wont bring problems in the future?

A: i agree with the other guy you should get something else with that money lifting a truck is the stupidist decision ever it makes trucks look like shit
get a good gps and a nice stereo system

Q: Where can i find exterior replacement parts for a 1995 GMC Sierra 1500?
I have a 95′ Sierra stepside SLE with a 5.7 litre V8. The lower panels arond the outside of the truck are chrome and above it is chrome trim. I need to replace the trim and the GMC logo that was originally there but I can’t seem to find it anywhere. Any suggestions?

A: There is a website called LMCTRUCK.com they specialize in direct replacement parts for american made trucks from the 1940,S to present and they are really cheap…U can also order a catalog…..

Q: where is the o2 sensor located on a 2005 GMC Sierra 1500 crew cab z71, in front of the cat or behind it?
Was just curious where the o2 sensor is located on a 2005 GMC Sierra 1500 crew cab Z71, because I wanna put true duals, no cats with glasspacks!!?

A: You have 4 O2 sensors and 2 cats. You have 2 O2 per cylinder bank. So there is one sensor before the cat and one after the cat, for each side.

Running no cats will screw you, engine performance will be effected. Purchase some aftermarket high-flow units if you feel that you must get rid of the stock units.

Q: have a 2006 gmc sierra 1500 5.3 am looking to laptop it for performance?
have a 2006 gmc sierra 1500 5.3 am looking to laptop it where do i go to do that? looking for performance im in sacramento ca what will it cost? what will i need to buy?

A: I agree with what the other guy said. HPTuners is what the big names are using along with LS1 Edit. Check out Performancetrucks.net, they have a bunch of info about using HPTuners to tune. Actually, there’s a few members on that site that live in your area and might be willing to help you out. Go check it out. Good luck.

Q: 1996 Gmc Sierra 1500 extended cab 2wd transmission can a 1998 fit in the place of it?
I have a 1996 GMC Sierra and it’s transmission has went out. They only made this transmission for this specific year in 96. However I’m wondering if one from a 1998 Cheverolet Silverado 2wd ext cab will fit and plug up all the same!
it has a 4L60E in it if this helps!

A: a GM tranny only used in one year model???……not likely…..the 98 is most likely the exact same tranny…..it should work just fine!!!……look underneath and see if the bol pattern on the tranny pan is the same….if it is then the trannys are exactly the same!!!!!

Q: No speedometer reading on GMC 1500 Sierra 4WD Replaced Vehicle Speed Sensors on Allison transmission. Looking?
No speedometer reading on GMC Sierra 1500 4wd. Do you have troubleshooting tips. Replaced vehicle speed sensors = no change. Thanks

A: Make sure it was the right sensor you replaced.They are 3 speed sensor on that trans Input output and drive.The one your after is off the tail shaft.They were also having trouble with the head units.It could be your going to have to it go to the dealer. See if you can found the tech bulletins for your truck as I recall one for speedos dropping out on your truck .The repair was to replace the head unit and reprogram it.Been off work for 6 month so not positive on it .Good luck hope I helped
GM tech for 20 years

Q: What kind of transmission does my 1995 GMC Sierra 1500 with cruise control have?
I have heard it could be the 4L60 or the 700, please help me out. The truck is an automatic with a V8 engine. Thanks in advance for the help.

A: Your truck has the 4L60E. The 4L60E was began use in the pickups in 1993. The 700R4 was the OD trans used in the ‘92 and older.

Q: What is the cheapest way to make my 1988 GMC Sierra 1500 into a cool mudding truck? lifted and everything.?
I’m only a 17 year old girl in good ol Wisconsin so i don’t have a butt load of money to go spend. But I’d really like to put a lift kit on it, bigger tires, get a paint job, and I’m already getting a glasspack so the muffler is fine. Any suggestions as to where I should go about making my truck totally awesome?

A: the best advise i can give you is go slow on your modifications.

you want to have a safe ride, by lifting your truck, and adding bigger tire you will be changing the performance of your engine (lower rpm’s and power) and if it is and automatic, this could cause your transmission to run hotter due to shifting and gear hunting) to correct this then you need to change gear ratio’s and while you are at it you might as well add limited slip and/or lockers. since you have a 1500 (1/2 ton) if you are running a 10″ differential then the largest tires you should run are 33″s. if you go bigger then you will need to swap for 3/4 or one ton axles.

you will have plenty of time to make it cool. drive it for a while and figure out if you really need a trail/mud runner and if you do then take a look at the major 4×4 lift kit manufacturers like superlift or trailmaster.

all of this cost $$$.

Q: what exhaust system sounds best on a 2003 gmc sierra 1500 4.3l v6?
I have a 2003 gmc sierra 1500 with a 4.3l v6 and i would like to put a dual exhaust system on it to give it a better sound, I dont want it to be so loud i just want a nice sound when i take off or stomp on it. any feed back is appreciated

A: I would go with a Flowmaster system. You will get a nice,deep sound. Plus a horsepower and fuel milage increase. They make a direct fit model.

Q: How to fit a after market speakers into a 2003 GMC Sierra 1500 Ext.Cab?
I am planning to replace my stock speakers with after market speakers. I ask because as was taking off the stock speakers, I notice that my 6.5 and 4×6 after market speakers will not stay on unless I drill holes to keep them in place. Do I need a speaker adapter to keep my new speakers in place without drilling holes or do I need to?

A: There are adapter plates sold at car part stores. Drilling is the easiest and cheapest way though. Before you do anything, remember, you cannot un-drill a hole. Measure first and mark before drilling.

Q: My rear brake lights automatically come on when i start my 1996 gmc sierra 1500?
It is a 1996 gmc sierra k1500 with 153k miles. My 2 rear brake lights are always on when i turn on my truck but my 3rd brake light above the cab only comes on when i brake. Also my left turn signal flashes really fast and my right turn signal just lights up in the front. The brake lights go off when i use my turn signals. I have checked all bulbs and fuses. I also checked the flasher unit and the tail light circuit boards. Can anyone help me?

A: or a messed up brake light switch

Q: How many quarts of transmission oil does a 1994 gmc sierra 1500 4×4 with the 4l60e hold??
and also how much for a filter and gasket kit for this trans??I was planning on taking my truck to a shop for the change but i got a buddy that used to be a mechanic to help me….

A: the kit with the filter and gasket is not too much 30-40. all depends on the brand. as far as the fluid buy 5 to 6 quarts BUT when refilling only put in 4 1/2 quarts, shift throught the gears P-R-N-D-2-1 and back up to park. then check the fluid level and top off as needed.

Q: i install a new fuel pump on my 2001 gmc sierra 1500 truck and it wont start?
how do i know if i install everything right?

A: on GM trucks the fuel pump will not operate if the ING. module is bad. ck fuel pump relay also.

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