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About Thirdcoast

  • Birthday December 18

Profile Information

  • Name
  • Location
    Victoria, Texas
  • Gender
  • Interests
    Tinkering with my cars and Tarpon fishing
  • Drives
    2020 Chevrolet Silverado Custom CC 4WD ; 2018 Tahoe Custom;

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Thirdcoast's Achievements


Enthusiast (2/11)



  1. I have scoured this thread and cannot find a link to a parts diagram for the entire jump seat.. I have a good used jump seat with top and bottom storage, but would like to replace a couple of parts, so need a diagram/parts list.. Any help is appreciated. Thanks, Thirdcoast
  2. Just bought a 2020 Silverado 1500 Custom and now I am looking for the folding center Jump Seat with the opening top storage area and the locking bottom storage. If anyone has one that they would like to sell, I am interested. I also have a FedEx commercial account so can ship on my dime.. Thanks, Thirdcoast Victoria, Texas
  3. My new Silverado 1500 Custom is pretty quick as it has the 6L80 with the 3.73 gear.. Pulled several trailer loads of dirt in excess of 8000 lbs. in a 14 ft dump trailer last weekend and it performed very well.. trailer weight plus load = 10,500-11,000. I bought this truck to replace a 2006 1500HD and so far I am satisfied with the work performance.. TC
  4. Had this done last Monday.. Have not noticed the noise since the fix!! I did ask the tech if he had any recommendations for preventative maintenance.. he said : "I think the best thing is to clean debris from the spring pad and add lubricant such as lubriplate high temp grease. I have had to reapply to my truck a few times." I will follow his recommendation and we shall see ? Thirdcoast
  5. 2020 Silverado 1500 Custom w/ Max Tow.. Already had the dealer take a look at mine with 600 miles and they said "They All Do It" Now I have some ammo with the TSB posted so I am taking back tomorrow.. Thanks for all the posts on this issue.. i will post the results of my visit tomorrow!! Thirdcoast
  6. 2009 GMC, The Vortec Max is a 6.0 with the L92 heads and different cam, 367 HP vs. 300, which makes it run much different than the 6.0 in the 3/4 ton trucks. I will never get rid of this 07 GMC as it is my workhorse.. I have over 130,000 miles on it and have never done anything other than routine maintenance. Actually just did the 150K bumper to bumper maintenance as I tow a lot with this truck. It rides like a 1/2 ton and works like a 3/4 ton.. has the 4L70 tranny and 14 Bolt Rear Axle, 10.5" ring gear, with 3.73:1 Gears,, Only mods are: Air Raid MIT w/ dry filter; Bilstein 4600 Shocks & Range AFM eliminator.. With all that said, Goldie will eat it's ass in a drag race, cornering, top end and MPG.. of course, she cheats with the mods.. Here are a couple of pics,, she looks completely stock until I turn the key.. I have been looking at building a street rod or something, but cannot get away from the Tahoe for overall performance and comfort.. May be the Best "Made In The USA" Grand Touring SUV made in my humble opinion.. Thirdcoast
  7. The engine code is the 8th digit. Should be "2" if it is the L9H engine. That's not a bad price considering the mileage. and depending on the condition of the running gear. I looked for over a year to find one with low mileage.. If I sold mine, I would not even consider less than high $30's.. with only 44K miles and all the mods, I don't know if I could replace it for that.. or if I could find one with low mileage. It will never be a DD, just a weekender or for a trip.. Dang sure cannot replace the fun of driving it for that!! and have the comfort-ability that it affords along with the performance.. Now, I am an old fart who raced for about 30 years, NHRA & SCCA, so I have to have something in the stable to get my FIX.. I was losing my mind looking at a Porsche last week, but not comfortable enough for me at my age.. Good luck with your search.. Thirdcoast
  8. 2009 GMC, to answer your question, there were 620 Tahoe's made with the L9H option in 2009. I think the problem was that you had to buy the LTZ package to be able to buy the 6.2 engine, so this made it very close to a Denali price.. Second question, I have the same Z71 2 speed transfer case which is great as I am on the highway with it all the time and can drive in 2WD, Since the exhaust mods, I went with the Baer Eridispeed 15" brakes with the Baer Hybrid pads.. This Tahoe Will Stop!! Added Hotchkis Sway Bars and also put a new set of Goodyear Eagle LS2 V rated tires on as I can easily exceed the rating of the S rated LS2's.. those went on the 14 Tahoe.. Every time I think about doing something else, I just take it out for a drive and find a nice curvy back road and let it all out.. that satisfies my Old Fart Go Fast Itch.. I think it it a keeper as it only has 42,000 miles on her and is a weekend or trip vehicle only.. TC
  9. I know it is an exhausting topic, but I just could not resist. I have had a problem deciding on what exhaust system to put on my 09 Tahoe L9H and after looking at everything, my muffler guy said let's try this: So we cut out the stock muffler and installed a Flowmaster Big Block 50 Series, 3.5 in & 3.5 out with the correct offset. Welded it in and left the resonator and stock outlet.. I think it sounds great, has a real good rumble to it very much like my 454 Suburban from a few years back with a Gibson on it.. It is loud enough when you get on it and has ZERO drone cruising at 75 MPH or even around town.. So far I have added the AirRaid MIT w/Dry Fllter, Muffler and had it tuned by Nelson Performance in San Antonio.. I like it so much that I sold my 67 SWB and am making this my Geezer Hot Rod.. Plenty of Go and now just need to help the brakes some. BTW, did a 250 round trip yesterday and averaged 17.8 MPG for the overall trip, mostly highway at 77 and some in town.. If anyone has a solution for Brakes, I would like to hear about it.. Have looked at Wilwood and they are 4K for F&R but they WILL STOP this truck. Thanks again for this great forum, Thirdcoast
  10. Sorry, but I had already had the dealer install a new shock before I found out about Arnott.. Have you contacted their customer service dept.? My buddy says they are pretty good about helping solve a problem with their stuff.. TC
  11. Go to www.arnottindustries.com and you will find what you are looking for. They sell complete Autoride kits and also sell the conversion kits to go to rear coils and standard shocks. A friend of mine also said that you can use the Bilstein 5100 shocks with their conversion kit. Good luck I just replaced a factory Autoride shock and the price was shocking.. I wish I had known about the arnott products as they are lifetime warranty. Thirdcoast
  12. OK, here is my 2c worth. I have a 2009 Tahoe LTZ, 4WD, L9H 6.2L, 6L80. The mods I have on this vehicle are as follows and the mileage difference was measured after each mod. AirRaid MIT with Dry Filter Stock Air Box: .5 MPG Factory 3.5" exhaust with Flowmaster Big Block 50 Series Muffler 3.5" X 3.5": .6 MPG Nelson Performance Tune: 1.4 MPG Total MPG gain measured cruising at 75 MPH on cruise control on a level highway: 2.5 MPG Real Life MPG -10 MPG after all this money and work because I can't keep my big foot out of it. Not Bad for a Geezer Hot Rod Thirdcoast
  13. I absolutly love driving my 2009 Tahoe LTZ with the L9H 6.2L engine, but really get tired of the lazy shifts. Wish I could transplant the new 8 speed or even the new controller in mine.. But the good part is I can dust the GOAT & TRD trucks with a soccer mom Tahoe TC
  14. I am very old school (maybe because I am OLD) but I have learned to adjust to the modern lubrication benefits.. I had the opportunity in my career to go to a Lubrication Engineering school (1 week long conducted by a major speciality oil company) and learned a lot.. basically, you can use gorilla piss if you keep it clean and cool.. but the advantages of synthetic oil is huge compared to petroleum based oil.. After I returned from that school, I changed the oil in my NHRA Supergas Roadster to Amsoil 0W30 in the 427 BBC engine and never had an engine problem in the next 10 years of racing turning the engine to 7500 every pass. With all that said, I run a 2007 GMC CC 4WD 6.0L VortecMax PU, 115000 mi., a 2009 Tahoe LTZ 4WD L9H 6.2L, 38750 mi. and a 2014 Tahoe LS 2WD, 14000 mi. I change the oil on all of them when the Oil Indicator gets to 20% and I use Mobil 1 in all of them.. I picked the 20% as that is what the dealer told me I had to get to on the new truck to get the free oil change. They charge me the difference for the Mobil 1. Just my 2c worth.. Good luck, TC
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