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| 06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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05-08-2008, 06:21 PM
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eBay Motors
#1 (permalink)
| | Member
Join Date: Jan 2008 Location: Clemson, SC
Posts: 81
| Manual Shifting The Allison
HEY GUYS- QUESTION FOR YOU ALL. I'VE NEVER MANUALLY SHIFTED MY TRANS, WHAT WOULD HAPPEN IF I WERE ALREADY UP TO SPEED AND SHIFTED OVER TO M POSITION ON MY SHIFTER- WOULD IT AUTOMATICALLY GO TO THE SAME GEAR I WAS IN WITH THE D POSITION? ALSO, THE OTHER WAY- SHIFTING MANUALLY AND THEN GOING TO DRIVE ON THE POSITION SELECTOR. WHEN YOU ARE SHIFTING MANUALLY WILL THE TORQUE CONVERTER LOCK UP? OR DO YOU HAVE TO BE IN TOW- HAUL MODE FOR THIS TO HAPPEN WHILE SHIFTTNG MANUALLY? THANKS IN ADVANCE FOR ANSWERS FELLOWS- JASON 
__________________ 2006 2500 LBZ CREW CAB LONG BED
EDGE JUICE W/ ATTITUDE
315'S W/ 17" GEAR LOCKER 714C WHEELS
FABTECH 6" LIFT
BD EXHAUST MANIFOLD
S&B COLD AIR INTAKE
4" STRAIGHT PIPE EXHAUST
1 CARSEAT IN THE BACK!!  | 
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05-08-2008, 07:46 PM
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eBay Motors
#2 (permalink)
| | John Deere Green
Join Date: Nov 2007 Location: St. James City, Florida
Posts: 679
| When shifting from D to M it will stay in the same gear unless you shift it yourself. M to D it will find the best gear if it is not already there. Its perfectly fine to do this it will not hurt anything. Good Luck
__________________
2006 GMC 2500HD LBZ Crew Cab 4x4, Silverline Turbo Back Dual Exhaust, PPE Hot Programmer, Egr Block Plate, PPE Air Box Mod, 2in. Plug, SES Light
Full Bore Exhaust Manifold compliments of BD Diesel. | |
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05-08-2008, 10:33 PM
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eBay Motors
#3 (permalink)
| | Duramax Forum Moderator
Join Date: Oct 2007 Location: Greenville, KY
Posts: 1,864
| Like stated above it won't hurt anything. But unless you are trying to hold a gear for some reason, i think you will find that you can not out smart the ally when it comes to shifting.
__________________ KYLE
05 Chevy LLY Crew Cab LT Dually 4x4, Crank it up Diesel Tie rod sleeves and centerlink, BD Diesel Remote Fuel Filter, EGR Blocked, TTS Dual Lift Pumps, FPRV Shim, Bullydog Outlook Monitor, AFE Stage 2 CAI, BD Diesel Manifold, Diamond Eye Turbo Direct Pipe, Diamond Eye 5" exhaust straight piped, Level Kit, Suncoast Stage IV w/ 1056 Torque Converter and Allison Deep pan EFI Live is on the way!!!!
1981 VW Rabbit Pickup, 1.6L Diesel, 4 Speed Manual, 35 MPGs | |
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05-10-2008, 08:42 PM
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eBay Motors
#4 (permalink)
| | Moderator
Join Date: Mar 2008 Location: U.S.A.
Posts: 1,227
| I like the features I do it all the time..
__________________ 2006 GMC 2500HD4x4 sb cc LBZ baby!! 46,674 miles..  2001 GMC 1500 2wd ex-cab 5.3...92,000 miles....1987 Monte Carlo SS 87,000 orig. miles  ...1978 Chevrolet Malibu 2-door coupe..The LBZ is still the quickest of all!!! | 
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05-11-2008, 07:49 AM
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eBay Motors
#5 (permalink)
| | Duramax Forum Moderator
Join Date: Feb 2007 Location: Barnesville OH
Posts: 3,004
| the Ally's computer will still overide stupid drivers such as leaving the manual shifter in 6TH gear at a dead stop the Allison will start out in 1ST gear like it should then proccede to shift to 6TH when the time has come to use that gear and works the other way around if a guy puts it in 1ST gear while traveling highway speeds the Ally will down shift as quickly as it safely can to 1ST gear but won't head for 1ST gear the moment you engage the manual mode in 1ST,GM thought all that thru before they let the puplic have the Manual mode feature...
just because i tested all that stuff out doesn't make me stupid although maybe a litte crazy but not stupid...I THINK...LOL
__________________ 
05 LLY Chevy LS E/C L/B DRW my older brothers truck now
2006 LBZ GMC SLE C/C S/B,sold the truck to my dad for a business truck
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP. | |
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