These units do not have a dipstick, so the temperature must be between 167☏–176☏ (75☌-85☌) before removing the fluid level site plug to check the level. In addition, the additive package can settle out of the ULV fluid when it is left on the shelf for long periods of time, so the bottle should be shaken before it is installed into the transmission. Failure to use ULV fluid may cause shift concerns and possible clutch failure, so it is wise to use the fluid the unit was designed to utilize. The fluid used in this application is Dexron ULV. The 10L1000 has four Hall Effect speed sensors and an Internal Mode Switch (IMS, Range sensor) that provide information to the TCM (figure 2).Īn off-axis gear-driven variable vane oil pump, a squash design torque converter, and a valve body equipped with linear solenoids are used to control the unit operation (Figure 3). (Note: unlike other GM 10 speed transmissions the 10L1000 doesn’t have any one-way clutches) It has four planetaries and six multiple disc clutches (seven clutch packs if it’s equipped with a PTO) that are used to provide 11 different gear ratios. Internally the 10L1000 is a clutch to clutch shift unit, which may or may not be equipped with PTO. The TCM is shared with several other GM transmission applications, which is definitely a move in the right direction. The 10L1000 is a fully electronically controlled unit which utilizes an “externally mounted” TCM.
With the introduction of the 2020 light truck line up’s a new Allison is now available for purchase, a 10 speed known as the 10L1000.
#Allison transmission in dodge cummins series
Numerous versions of the 1000/2000 series made these transmissions some of the most versatile units ever produced. An awful lot of customers purchased GM trucks simply because they were equipped with an Allison transmission.įive generations of the 1000/2000 units have been produced as five, six, and even seven speeds in some non- GM applications. Dodge with its “Cummins” and Ford with its “Power Stroke” had what they believed were competitive engines to the “Duramax,” but the one thing they lacked was the name Allison on the hood of the truck. That changed many years ago when the LCT 1000 and LCT 2000 series were introduced into pickup and light truck applications. The Allison applications are thought of as units used in medium and heavy-duty applications. Even after being split off from GM, the GM/Allison relationship continues to this day. Allison, as most of you are aware, was a division of General Motors for decades. The name “Allison” immediately conjures up a picture in the mind of the consumer of transmissions that exemplify quality, durability, and longevity.
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