ATS Built LCT1000 5-Speed Transmission Package

Saying a lot of R&D has gone into the ATS built Allison 1000 transmissions would be the understatement of the century. Between the engineering team designing parts that our transmission specialists have developed and the thousands of testing hours on thousands of trucks around the world, no other transmission has been put through the paces like the ATS transmission has. We have transmissions in anything from stock truck with worn out factory transmissions, to professional hot shot drivers, to weekend drag racers and sled pullers, to competition drag racers and sled pullers, and even all the way as wild as a snow cat! The ATS built transmission was designed and produced for what you want out of it and how you are going to drive.

What sets the ATS transmission apart from the rest can be summed up in two words: innovation and technology.

Clutches - ATS manufactures each and every clutch used in any transmission or torque converter, and we are the only ones who do this. We do this by using a 3 axis high-intensity CNC laser to cut out all our clutch steels which allows us to make even the smallest of changes any time we see room for improvement. What this means is we can make the change and put it into testing and get it to the market almost immediately, where other company are stuck with what they can buy.

Along with this, we have formulated our own unique clutch material that is ONLY used in ATS transmissions. It also uses a bonding agent that will not disintegrate with heat or water, once it has bonded with the steel, they essentially become one piece. All clutch material is also bonded in house, which means unparalleled quality control over the parts that YOU rely on to get you to work, down the race track, or through a family vacation.

With our clutch designs and the style in which we build those clutches, we are able to add over 200% torque capacity to the transmission, allowing for more power and heavier loads put on the transmission without compromising reliability.

Valvebody and pump - The valve body, while working with the computer, is essentially the brain of the transmission. It is what routes fluid to particular clutch packs based on which gear your truck needs to be in. Needless to say, this is an important part, so naturally it was in need of improvement. A stock transmission will run with line pressures, somewhere around 90 psi. While this is no problem for stock power, it has little room for any added torque.

With the ATS shift kit (A and B trim valves and converter flow valve) and pump upgrade kit (pressure regulator valve and pressure regulator spring) we bump the pressure in the transmission up to 250 psi. This is what is going to give the clamping force on the clutches and give that added torque capacity. Add in a co-pilot, and that has the ability to reach 300 psi. Not only does this allow the transmission to hold more power, but it also allows for quick, crisp shifts with little to no delay in shift timing. So what you are going to notice, is that not only do you get through the gears quicker, but you will not kill off RPM, and more importantly boost from your turbo charger.

Stage 1 Transmission

The Stage 1 (as well as all ATS Transmission Packages) comes standard with the ATS Deep Pan. Featuring a finned design to dissipate heat, and adding five quarts of fluid vs. stock, the pan helps keep the transmission running cool.

• ATS Built Allison LCT1000 Auto Trans
• ATS 5 Star Viskus Clutch Drive Torque Converter
• ATS Extra Deep Transmission Pan

Stage 2 Transmission:

ATS Co-Pilot Transmission Controller. The controller dynamically raises line pressure electronically, for additional clamping force on the clutch packs. This prevents slip under high horsepower / high torque situations, such as drag racing, sled pulling or low-speed trailer towing. Shift firmness can be adjusted with the push of a button, so the driver can adjust shift feel in a matter of seconds. The Co-Pilot is designed for trucks at any power level, but becomes crucial at 600+ hp at the tires.

• ATS Built Allison LCT1000 Auto Trans
• ATS 5 Star Viskus Clutch Drive Torque Converter
• ATS Extra Deep Transmission Pan
• ATS CoPilot Electronic Transmission Controller

Stage 3 Transmission:

The Stage 3 also includes the ATS Billet Flex Plate. At power levels over 600hp, the factory flex plate can crack or break. The focus of the ATS Billet Flex Plate is to absorb more torsional load from the crank, thus resisting cracking/breaking as power transfers from the motor to the transmission.

• ATS Built Allison LCT1000 Auto Trans
• ATS 5 Star Viskus Clutch Drive Torque Converter
• ATS Extra Deep Transmission Pan
• ATS CoPilot Electronic Transmission Controller
• ATS Billet Flex Plate

Stage 4 Transmission:

ATS Extreme Allison Packages include proprietary modifications to the drums and pistons. We have found these modifications necessary when power goes over 700hp at the tires. In addition, the pump is also modified more extensively for increased line pressure. When coupled with the Co-Pilot (standard on all Extreme Packages), line pressure in excess of 300 PSI is achieved which is needed to prevent clutch slippage.

• ATS EXTREME LCT1000 5-Speed Transmission
• ATS 5 Star Viskus Clutch Drive Torque Converter
• ATS Extra Deep Transmission Pan
• ATS CoPilot Electronic Transmission Controller
• ATS Billet Flex Plate

Stage 5 Transmission:

The Stage 5 also includes the ATS Billet Output Shaft. In competition applications (drag racing and/or sled pulling) the stock output can break when launching. ATS includes a billet 300M output shaft to eliminate this point of weakness.

• ATS EXTREME LCT1000 5-Speed Transmission
• ATS 5 Star Viskus Clutch Drive Torque Converter
• ATS Extra Deep Transmission Pan
• ATS CoPilot Electronic Transmission Controller
• ATS Billet Flex Plate
• ATS Billet Output Shaft (4WD Only)

Stage 6 Transmission:

The final point of weakness when attaining 800, 900 or 1000+ hp is the stock Allison input shaft. The Stage 6 Extreme comes with a billet 300M input shaft for ultimate reliability in racing, street performance and towing applications.

• ATS EXTREME LCT1000 5-Speed Transmission
• ATS 5 Star Viskus Clutch Drive Torque Converter
• ATS Extra Deep Transmission Pan
• ATS CoPilot Electronic Transmission Controller
• ATS Billet Flex Plate
• ATS Billet Output Shaft (4WD Only)
• ATS Billet Input Shaft

Build Date Guide:
2001-2002 LB7 Transmission: Trucks built from Aug-2000 to Jul-2002
2003-2004 LB7 Transmission: Trucks built from Aug-2002 to Dec-2003
2004.5-2005 LLY Transmission: Trucks built from Feb-2004 to Jul-2005