Chevy Allison 1000 Transmission - Monster Transmission

StreetMonster Allison 1000 transmission with converter

Starting at$5,099

StreetMonster Allison 1000

High-Energy Frictions: improved heat resistance
Revised Oil Circuits: better lubrication & cooling
New A & B Trim Valves: full line pressure to clutches
Aluminum Transmission Pan: heavy-duty pan included
Warranty: 5 Year • Unlimited Miles
Horsepower: 100 over stock

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SportMonster Allison 1000 transmission with converter

Starting at$5,699

SportMonster Allison 1000

Increased Clutch Count across key packs for durability
Revised Oil Circuits for improved cooling & lube
New A & B Trim Valves: full line pressure to clutches
Aluminum HD Deep Pan: aids heat dissipation
Warranty: 6 Year • Unlimited Miles
Horsepower: 600 HP

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TrackMonster Allison 1000 transmission with converter

Starting at$8,699

TrackMonster Allison 1000

Triple-Disc Billet Converter for extreme lockup holding
New A & B Trim Valves deliver full line pressure
Increased Clutch Count with specific pack upgrades
Billet Input Shaft to survive snap from high HP
Warranty: 4 Year • Unlimited Miles
Horsepower: 700+ HP

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Why Choose Monster for Your Allison 1000

Three clear builds: StreetMonster (daily/tow + reliability), SportMonster (heavy tow & tuned power), TrackMonster (competition / big power).
Addresses known Allison 1000 pain points (heat, lockup holding, lube/cooling, clutch capacity).
Matched converter & hydraulics to your weight, gearing, tires, and usage for lower temps and longer service life.
Dyno-tested reman units; rigorous QC with long-term coverage.

What vehicles use the Allison 1000?

Common in GM HD trucks (Silverado/Sierra 2500/3500) with Duramax and select gas applications. Share your VIN for precise fitment.

Do I need programming after install?

Follow factory procedures for TCM/PCM updates and adaptive relearn. Verify line pressure/adaptives after the initial drive cycle.

Is a torque converter included?

Yes—each build includes a matched lockup converter spec’d to your use (daily, towing, performance).

Cooling & maintenance?

Flush/replace the cooler & lines. Consider auxiliary cooling and in-line filtration for severe use/towing.

Warranty & horsepower?

StreetMonster: 5 Yr / Unlimited • ~100 HP over stock. SportMonster: 6 Yr / Unlimited • ~600 HP. TrackMonster: 4 Yr / Unlimited • 700+ HP*. *Vehicle weight, tires, gearing, load, and tuning affect capacity.