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M-Wheeler

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M-Wheeler last won the day on December 1 2018

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About M-Wheeler

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  1. Go to their website, do some research. Same for Rocky Ridge. Both companies perform the work prior to sale of the truck. Both offer 3yr/36K through the dealership. Here: saved you some time, Callaway - Bottom of their webpage: https://www.callawaycars.com/homepage/cars/supercharging/ Rocky Ridge - middle of the webpage: https://rockyridgetrucks.com/lifted-trucks/lifted-chevrolet-trucks/silverado-1500-2500/black-label/
  2. I had a 17 5.3 6spd with 4.56 gears. 6" lift, 20's with 35's. Traded it for a Callaway SC560 Mine used to cut off in between 1-2 shifts using a handheld tuner. Once I had a professional tune done to the ECM and TCM, the shifting was perfect and never cut out again. I do not pretend to know more than I think I know, but I think if the speed calibration in the tune does not pair indentically ECM to TCM it might be causing the shift cutout at very high RPM. But I will leave that there for the more experienced tuners to chime in.
  3. I have the 2018 Rocky Ridge Callaway SC560. It is a beast of a truck. It started as a 6.2 8spd Loaded LTZ and then customized by Rocky Ridge and Callaway and retains full factory warranty. I also opted to purchase a 6yr 150K extended warranty. It came with the AFM tuned out (didn't surprise me) GenThree Triple Cooled Supercharger Callaway Honker CAI Callaway tuned stainless exhaust 4" coil over lift Callaway 9 spoke wheels Amp side steps Carbon fiber interior NO catch can NO clean side separator I installed a catch can and a clean side separator. I check and empty the can every 1,000 miles and depending how hard I drive the truck, it has about 2 tablespoons of crap in the can.
  4. Do a complete trans fluid flush with with new Mobil 1 fluid they are using for the "clunk" fix in the 8 speeds. It's the new blue label Mobil 1 Synthetis LV ATF HP. It will take 12qts. My "flares/clunks/hard downshifts" have pretty much disappeared. Also, do the thermostat delete.
  5. Mine is a 6 speed and I see a tremendous improvement in upshift firmness, no downshift clunking and no more "flares". Have 12,500 miles on this swap, no issues. Although I did a flush and fill , I plan on continuing to replace 1/3 (4qts) at each 5K oil change for a bit just for piece of mind. My oil extractor removes exactly 4qts through the fill dipstick.
  6. By a new thermostat from dealer $75 Perform the thermostat delete mod on new thermostat Remove current thermostat, (keep for later if needed for colder weather, takes 5 minutes to swap) Install modified thermostat Now you can flush system using outlet line of thermostat Refill using the newly updated Mobil 1 Synthetic LV ATF HP fluid (12 qts). Smooth as butter, no jerking, no hesitant shifting.
  7. I am considering a performance build from GPI in Jacksonville, AR. I already have a tune from them, but if a lifter ever goes out, I'll be paying them to do a true delete kit with performance cam, headers and re-tune. $3-4K
  8. replace with AFM delete kit/cam/tune....more torque/horsepower, more reliable, less money.
  9. I had my truck tuned at GM by an "in-house" performance division called GPI, they do full AFM delete kits etc. on the vette's and so forth, as well as tunes. I have used them on 4 previous vehicles. They use an HP Tuners product. I called my guy over there and asked him about the thermostat delete, he mentioned not to mess with it, and that there are tuning tables in the TCM that are set at different performance levels for different temperatures. I know nothing about what tables could be in the TCM, or if the HP Tuner software has the ability to adjust for each table at each temperature, but if true, and you have a tune, then reducing the max temp of the tranny might not let the tranny get to the next heat/table.... thoughts?
  10. I have the 4.56 gears with 35's and have no complaints. 2100rpm at 70mph. Drove 1000 mile round trip this past week from Little Rock to Galveston, 15.7mpg average (hand calc) running 75-80mph 4.10 gears with 35's would effectively be approx. 3.73 gearing 4.56 gears with 35's would effectively be approx. 4.10 Gearing Currently, your truck with 37" tires and 3.23 gears is running at an approx. 2.76 gear. With 37" tires you really need 4.56 gears, that will put you in between a 3.73 and 4.10, which would be perfect with the 6.2, good towing and decent gas mileage.
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