Can a 5 speed Allison be converted to a 6 speed?
Can a 5 speed Allison be converted to a 6 speed?
But on the 2003 – 2005 models you can also go from a 5 speed to a 6 speed transmission as well, but you have to purchase a kit which range online from $1,500 to $2,500 depending on who you want to purchase it from. The kits contains a 6 speed valve body and a TCM.
When did the first Allison Transmission come out?
The first version of the Allison had five forward gears and was used from 2001 and 2005 behind the LB7 and LLY Duramax. It was unique at the time since it was the first all-electronic clutch to clutch automatic transmission to be used by any of the big three.
Can you add 6th gear to an Allison?
The 6th gear option money would buy ALOT of diesel. The cost to add 6th gear to a 5 speed Allison is pretty expensive. You only drop 300rpm on the freeway…. to get slightly better mileage. The 6th gear option money would buy ALOT of diesel. Click to expand…
Can a 5 speed transmission be converted to 6 speed?
The limiting factor is the valve body. You would need a valve body that is designed to run a 6 speed transmission to unlock the second over drive gear. There are kits available for this that will upgrade your current transmission without needing to go buy a whole new one. Thanks J83 for your reply.
But on the 2003 – 2005 models you can also go from a 5 speed to a 6 speed transmission as well, but you have to purchase a kit which range online from $1,500 to $2,500 depending on who you want to purchase it from. The kits contains a 6 speed valve body and a TCM.
The first version of the Allison had five forward gears and was used from 2001 and 2005 behind the LB7 and LLY Duramax. It was unique at the time since it was the first all-electronic clutch to clutch automatic transmission to be used by any of the big three.
The 6th gear option money would buy ALOT of diesel. The cost to add 6th gear to a 5 speed Allison is pretty expensive. You only drop 300rpm on the freeway…. to get slightly better mileage. The 6th gear option money would buy ALOT of diesel. Click to expand…
How much power can an Allison Engine take?
At the time, GM had a couple automatic transmissions in its arsenal which could cope with the torque of a small or big block gas V8, but nothing that would be a match for the 500 pounds of torque the LB7 was initially rated for, much less the increases in torque which would inevitably come.
