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Performance Engines: Performance Transmissions

The JASPER/FACTORY TECH Monster Box

There are original factory transmissions, and then there's the Monster Box, because sometimes it takes more guts to handle the work done by Ford trucks than the original transmission has the stomach or guts for.

The Monster Box is exclusively produced and distributed by Jasper Engines & Transmissions through our partnership with Factory Tech Transmission Performance.

The Monster Box is a re-engineered design of E4OD and 4R100 transmissions and is available for Ford trucks including Lightning and Super Duty applications. It's also available for either 2 WD or 4 WD trucks and is right at home in both street and off road environments.

The Monster Box from Jasper includes:

• Re-engineered clutch packs
• Re-engineered valve body and accumulator
• Re-engineered torque converter
• Upgraded planetaries to Ford's heaviest duty applications
• 2400-2600 stall speed converter available for the Ford Lightning

• Shorter shift duration resulting in less clutch slippage in order to provide you with a firmer shift.
• More durable performance through the use of heavy-duty components and re-engineered assemblies.
• Built to your specific application.
• Readily available so you can put your Ford Truck back into some heavy-duty action.

Back to Performance Transmissions

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