FAQs

You’ve Got Questions? We’ve Got Answers!

Please feel free to email us with any questions that you may have. We look forward to helping you with your Cummins swap!

Category: Common Questions
Yes. You’ll need:
  • A bellhousing adapter
  • A flexplate to mount the transmission to your engine
Several manufacturers supply these. For wiring, tuning, and miscellaneous Allison parts, we recommend TransmissionTuner.com. Precision Industries offers a torque converter specifically designed for this transmission/engine combination.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions
  • GMT 800 motor mounts: Factory power steering line works even if the Dodge vacuum pump is deleted.
  • GMT 400 motor mounts: The Dodge vacuum pump must be deleted using a 4BT-style power steering pump mount and drive gear. Once deleted, a factory-style power steering line can be used.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. The PCM communicates tach signal and vehicle speed to the instrument cluster.

  • Use HP Tuners or EFI Live to reprogram the PCM, turning off unused tables and the check engine light
  • Factory GM oil pressure and temperature sensors remain installed on the Cummins engine
  • Coolant and oil level monitoring can be retained if desired

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

We’ve discontinued the tone wheel kit. Instead, we use:

  • Waveform (W) terminal on the Delco 28SI alternator
  • Combined with the Dakota Digital Diesel Tach Interface (link)

This solution is reliable, strong, and cost-effective, with added benefits like internal regulator and high amperage rating.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. It requires:

  • Fan support, pulley, fan clutch, and fan from an intercooled first-generation Dodge RAM
  • Machining of the heat exchanger fins on the clutch to clear the radiator
  • Fan spaced 5/8″ off the clutch with a machined spacer (coming soon from SSOR)

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. The early GM cruise control module can actuate mechanical throttle linkages.

  • Very inexpensive
  • Easy to wire

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Inline 6-cylinder engines are long. We position the engine as far rearward as possible to allow a mechanical fan with the cooling pack in the factory location. This moves the transmission roughly 4″ rearward.

Additional adjustments required:

  • Rear driveshaft shortened
  • Front driveshaft lengthened
  • Transfer case indexed upward
  • Torsion bar cross member and transfer case linkage modified

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. You must:

  • Trim the raised area at the bottom of both motor mount saddles
  • Use the included 3/8″ reinforcement plates (welded or bolted)
  • Install countersunk bolts in the 3 uppermost differential case bolt holes
  • Trim some differential case webbing

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes, with fabrication:

  • Remove pedestals welded to the cross member
  • Drill holes to bolt in the lower motor mount
  • Access nuts through spring pockets
  • Relieve and box the cross member to clear the oil pan and restore structural integrity

Important: The cross member is integral to suspension. Only experienced welders/fabricators should attempt this.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

We design components for a wide range of chassis including GM, Ford, and custom applications. Our parts are commonly used in GMT400, GMT800, square body, OBS Ford, and custom builds. If you can measure and fabricate, our parts give you a solid foundation for a proper swap.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

No. We do not sell “one box does everything” kits. We design engineered components that solve specific problems in swaps—motor mounts, crossmembers, adapters, and brackets. This allows better fitment and flexibility instead of forcing a generic solution.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Our components are designed to work with both 5.9L and 6.7L Cummins platforms. Always verify engine generation and accessory layout before ordering.

Leave a Reply

Your email address will not be published. Required fields are marked *

Yes. These products are intended for experienced builders and shops. Many installs require welding, cutting, or frame modification. Proper swaps require proper work.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Many customers run 6.7 Cummins engines in older GM and Ford trucks using our mounts and crossmembers. Cooling, electronics, and packaging must be addressed like any serious swap.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Some parts are direct bolt-in. Others require drilling, trimming, or welding depending on the chassis. These are real engine swaps, not cosmetic installs. If it was truly bolt-in, everyone would be doing it.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Some of our components are compatible with 4BT conversions, and many customers adapt our mounts and brackets for industrial-based builds.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Our mounts are commonly used with NV4500, NV5600, G56, and Allison 1000 transmissions. Transmission choice may affect crossmember position and driveshaft length.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. 4WD is retained in many of our swaps. Transfer case position, front driveshaft clearance, and crossmember layout must be considered.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Often, yes. The Cummins is a long engine. To achieve proper fan and radiator clearance, the engine is usually positioned rearward, which requires driveshaft modification and crossmember adjustment.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. In addition to diesel conversions, we engineer LS swap components for builders who want clean fitment and reliable mounting.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Both. Our LS components are built to handle real use, real power, and real abuse. Strength and fitment come first.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

In most cases, yes. This typically requires the factory engine computer and proper signal integration. Many customers use HP Tuners, EFI Live, or interface modules to make everything communicate correctly.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. With the proper setup, cruise control can be retained. Many swaps use early GM cruise control modules or aftermarket solutions depending on throttle type and chassis.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

That depends on the engine generation and your goals. Some mechanical setups can run without an ECM, but most modern swaps retain it for gauges, diagnostics, and drivability.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Some applications do. Especially on GMT400 4×4 trucks, trimming, drilling, and reinforcement of the crossmember may be required.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

In many cases, yes. Some swaps require removal of factory pedestals and boxing of the crossmember for strength and clearance.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

No. Our parts are designed to fit correctly without body lifts. If you choose to run one, additional adjustments may be required.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. We design and build custom tools specifically for diesel shop owners and professional builders. These are not homeowner-grade tools.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Our lineup includes heavy-duty hydraulic presses, diesel engine stands, and custom shop fixtures and tooling.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Our diesel engine stands are designed to safely support 5.9L and 6.7L Cummins engines. They are built for stability and safety, not display.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Most parts include basic guidance. However, these products are intended for experienced builders and shops. A professional installer is recommended.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. We regularly work with customers on custom and one-off builds. Contact us with details and measurements.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

We provide support via email and direct communication. We are a fabrication and engineering shop first—clear, detailed questions get the best answers.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

At times, yes. Availability depends on workload and project scope. Contact us to discuss your build and timeline.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Yes. Many of our designs are used in competition environments where failure is not an option.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

Because cheap kits cost more in the long run. Our parts are engineered, tested, and built for real trucks, not internet builds.

Leave a Reply

Your email address will not be published. Required fields are marked *

Category: Common Questions

No. While our parts are clean enough for show builds, they are designed for working trucks, tow rigs, and daily drivers. Strength always comes first.

Leave a Reply

Your email address will not be published. Required fields are marked *