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Swap Block™ Mock Up 6L80E 6L90E Transmission | GF-MUT-6L80


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Product Description

  • Years: 2005-2016
  • Transmission: 6L80E, 6L90E
  • Our patent-pending tab-and-slot version of the mock up transmission block provides accurate transmission mounting, shifter location, and yoke positions.
  • This unique design is lightweight and comes disassembled for ease of shipping and storage.
  • One tool accomplishes accurate placement of either a 6L80E or 6L90E transmission depending on the position of the rear plates.
  • Easily positioned by hand, there is no need to bench-press a heavy transmission into place for fitment and fabrication of crossmember, etc.
  • Save time and money and work more safely.
  • Durable steel construction resists heat from welding, so unlike foam blocks, custom crossmembers can be fabricated close to the block.

The G Force Patented Transmission Crossmember

Performance Engineered from Start to Finish


Our engineers are also car enthusiasts—which makes designing automotive parts second nature. Because we use our products, we know the importance of crafting them with strength and durability. Get more performance from G Force.

Easy Installation.
It’s Foolproof!

We engineer bold solutions that make installation easier without sacrificing quality. Get more support from G Force.



2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016



6L80E | 6L90E


Weight: 17 lbs

Shipping Dimensions: 32 X 21 X 6 In

Finish: Natural Metal

Hardware: not included

Customer Reviews

Based on 2 reviews
Pete Rissley
Helpful piece for set up

Would have given 5 stars but instruction sheet would have been welcomed. Very easy to assemble but had to check phone for video and pictures.

Thank you for the 4 star review. There should have been a card with a QR Code and URL that led you to the assembly video included with your purchase. If that was missing it was an oversite by our shipping department. We recently switched to this method of providing assembly instructions and installation tips. We've found that some of this information. like the Swap Block assembly, is better conveyed using video. We hope you found the Swap Block useful to your project and we apologize for any inconvenience.

James Hardy
Mock up

I was pleased to finally find a 6L80 mock-up kit. And it was a reasonable price

Thank you for the 5 Star review. We're glad you found the mock up you needed. Good luck with your project.

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