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08-31-2011, 07:07 PM #1
Hydra-Matic 6-speed - Good tranny?
My 2011 Silverado came with the Hydra-Matic 6-speed transmission. It has a manual mode with a shift button on the shift lever. What do folks generally think of this transmission? Also, what about using the shift button to manually shift? Bad idea? Just wondering what kind of wear and tear I'm putting on it. It's pretty hilly around here so I use the manual shift frequently. Otherwise, the automatic shifting goes up and down way too much.
2011 Silverado Z71 4x4 5.3L - 6" FabTech Lift, 35" Toyo's on 20" Raptor's, Magnaflow exhaust, CAI, Intune Custom Tune
2007 Tahoe LTZ 4x4 5.3L - Black, 22" wheels, no other mods
2008 Jetta Wolfsburg Edition 2.0 Turbo - Black currently stock
1993 Mercedes C300 Convertable Straight 6 - Red, 17,000 original miles
2007 MB Sports B52 - 22' Competition wakeboard boat, 6.0L 375hp
08-31-2011, 07:40 PM #2
When you installed your lift and tires did you reprogram the trucks computer or regear the truck? That may be why the trans keeps shifting up and down so much.:cool:
2005 Chevy Silverado Z71 Crew Cab
6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
B&M aluminum deep transmission pan
Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
Weather Tech floor mats
Cover-Craft seat covers
Dash mat cover
Formula One window tint
One black Lab in rear seat.
08-31-2011, 08:05 PM #3
09-01-2011, 09:32 PM #4
Get it re-programed at your dealer. Chances are it needs an update anyway, maybe there won't be a charge.
I'm sure the trans is good, but it's too bad they dont have a switch,......eco/tow/sport. Would be nice........
Great looking truck BTW. Regular cab shorty......very rare in any form.2007 C-1500 LT RC/SB (294 SS)
09-01-2011, 09:56 PM #5
I don't think the dealer can adjust for 35" tires. I would start with a programer, like the Diablo Trinity to at least get the tire size corrected, this will help with the trans. Also you can adjust all sorts of things with the Diablo Trinity. You can data log with it, adjust the LongtermFuelTrims ( this really helps with throttle response, mpg's and all around performance.) and then get a custom tune via e-mail.
09-05-2011, 10:34 AM #6
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