2020 GMC/Chevrolet Diesel Engine
“The optional engine remains the largely carryover 6.6-liter Duramax V-8 turbo-diesel—445 horses and 910 lb-ft—but is now mated to a 10-speed version of the excellent Allison automatic gearbox, up fro...
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NOT dissing the trans but it's a GM built trans with an Allison "LABEL".
They have to have VERY low starting and reverse gearing to be able to pass the SAE hill start test with the new tow ratings. I wonder if you will be able to lockout the first one or two gears when unloaded. Personally with my 6 speed AISIN and 4.10's I would love to have it automatically lockout first when running BobTail.
They have to have VERY low starting and reverse gearing to be able to pass the SAE hill start test with the new tow ratings. I wonder if you will be able to lockout the first one or two gears when unloaded. Personally with my 6 speed AISIN and 4.10's I would love to have it automatically lockout first when running BobTail.
