GF-MUT-4L80 Mock-Up GM 4L80 Replica Transmission

Name: GF-MUT-4L80 Mock-Up GM 4L80 Replica Transmission
Brand: G FORCE PERFORMANCE PRODUCTS
SKU: 472-GF-MUT-4L80
Price: 234.99 USD
Availability: InStock

^$234⁹⁹

Ships on Sep 02, 2026

Lowest Price Guarantee

Swap Block Mock-Up Transmission

4L80

Accurate & Rigid Representation of Actual Transmission Case

Durable Steel Construction

Unique Tab-and-Slot Design

Resists Welding Heat

Includes Hardware

G Force Performance GF-MUT-4L80 Features:

G Force patent-pending tab-and-slot version of the Swap Block Transmission Mock Up Block provides accurate transmission mounting and yoke positions.
This unique design is lightweight and comes disassembled for ease of shipping and storage.
One tool accomplishes accurate placement of a 4L80/4L80E transmission found in 1991-2013, 3/4 ton trucks and vans.
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.Â

Part TypeMock-Up Automatic Transmission Case

BrandG FORCE PERFORMANCE PRODUCTS

Package Height6.0

Package Width21.0

Package Length32.0

Weight17.0 PG

Part CategoryPerformance Parts

Hardware IncludedNo

MaterialSteel

Part FitmentSemi Universal

FinishNatural

Vendor Part NumberGF-MUT-4L80