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Found 4 results

  1. I ordered a GMC 2500 At4 6.6 liter gas engine on April 4th 2022. After I got the order number I found out how to get on gmcs website to check on production with the virtual assistant on 4/10. That day I found out my vehicle was already produced however it is now 4/20 and i still do not have a vin number so that my dealership can set up tracking. does anyone know how long it usually takes a finished truck to get its vin number??? accidently posted this on someone elses forum the first time sorry new member to this sorta thing
  2. Hello, I have a 99 GMC Sierra 1500 SLT Z 71 off-road package. There is a huge backstory to this truck that makes it very important to me. throughout the two years I’ve had it I’ve been upgrading and building it. every time I go to the parts store it seems like there is an issue with the Vin number and the parts they give me. Believe me I know the incompetence of most part stores . NAPA auto parts seems to be the only parts store that has knowledgeable older employees competent enough to do an actual Vin search with cross referencing. They were able to use the cast numbers on my rear differential to verify what I had already thought. The rear end is out of an 05 GMC Yukon XL. all of the work that I have done has always been a chore first because the 99 is a 2 Truck year. there is a old body style 99 and a new body style 99 while at Napa they let me actually look at their computer screen and I noticed when They enter I started looking at Vin number identification and cross-referencing with RPO codes. The Vin number States that its 5.3 L V8 The RPO code says it’s a 4.3 L on the fan shroud it says 5.3 L V8 I look at my chilltom book and it tells me to look at the motor identification placard Saying that it is at the base of the back of the block where the transmission bell housing mounts. With a picture showing exact location. there is no placard there. so I check the cast numbers on the rear of the block passenger side. This is the biggest thing I’m having problems with. I ran those numbers on four different websites. on two of those websites There was no match through the search I checked small block and big block cast numbers from 1978 till 2013. these numbers do not match to anything Chevy put out. everyone keeps telling me it’s a small block 5.3 but the numbers start with 1256 those starting numbers do appear in the big block section. so I looked through it and found two Big block motors with almost exact numbers but off by one or two . I was starting to think that this is looking like a chop shop ordeal. when replacing the transmission and transfer case I noticed the wiring harness was mostly zip tied and not connected to stock anchor points. also the truck has 386,000 miles on it. The body is beat to crap. But the motor is exceptionally strong with exceptional power. My brother has an 05 Silverado with the same fifth wheel tow package same Z 71 heavy suspension and 5.3 L it was very real well taken care of by an old man the only used it to tow his camper. His truck only had 90,000 miles and my sierra out performs his in every single way. it has much more torque much more get up and go. and can haul so much more. with little to no problem on any incline he keeps telling me he doesn’t think it’s a 53 because of the power of the motor and the mileage The fender skirts had been ripped off on the front causing old mud splatter all throughout the engine compartment. But the motor is surprisingly clean except for a few valve cover leaks. it’s so clean it almost looks out of place. The coil packs are not new but they have no mud splatter but the plug wires have mud all over them. I could go on for days with reasons why I think the motor has been swapped. because of not being able to verify block casting numbers. I cannot be sure of what parts to buy or know what known issues I’m dealing with. I have read that 99 to 03 has some issues with PCV valve and badly engineered driver-side valve cover. intake gasket failure. I and Cass tech heads that crack causing head gasket failures. as soon as the weather changed warm the symptoms of all of these issues came up immediately. I am no mechanic and this is my first NBS Chevy. I am very mechanically inclined but I don’t understand electronics computers and vacuum in these new trucks. if anyone can give me any information on The Block cast #12560392 with lettering NMP6GMPT. or give me any verifiable information on how I can decipher exactly what motor this is what heads those are. I would like to start with the service bulletin pertaining to changing the driver Side valve cover gasket with better baffle and integrated PCV valve. feel free to ask any pertinent information you need. I tried to be thorough sorry for the small buck Thank you and God bless
  3. I recently looked up recall information on my 19 Silverado on the GM website https://my.gm.com/recalls as well as Chevy https://my.chevrolet.com/recalls and to my surprise, my vehichle description has recently changed and is now incorrect. These sites state "Currently, there are no recalls or programs associated with your 2019 Chevrolet Silverado LD Crew RST/LT-T1" My Silverado is clealry the new model, however, is now listed as an LD by GM. When searching outside vin checkers/decoders the vehicle comes up as it should (2019 Chevrolet Silverado 1500 RST Crew Cab 4WD) so it seems only GM/Chevy have now listed my new model SIlverado as an LD. Has anyone else seen this with their 2019?
  4. Is there a way to tell if a 2015 Silverado LTZ came with factory HID bulbs? I got a used LTZ that has factory projector headlights but the bulbs in it when I got it were halogen. I’m trying to put LED’s or HID’s in and want to do it as easily and cheaply as possible.
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