3.4-liter 5VZ manual (IG31)

Marlin Crawler and Inchworm have been working together for well over a decade. As the first exclusive distributor of Inchworm Single & Dual Case setups, we have been supplying our Heavy Duty adapter components and assembling transfer case products for Inchworm since the mid 2000’s. We are once again excited to be the exclusive builder and distributor for Inchworm products!

Made from 1/2″ thick USA billet aluminum, IG31’s multi transmission pattern allows for this kit to fit a large range of manual and automatic transmissions, allowing for future upgrades or changes in drive-train or use. This adapter allows an RF1A gear-driven transfer case or reduction housing (top shift, 23-spline) to be mated to the listed transmission. Note- Adapter is set to standard degree clocking. Rotation is now only available with clock-able dual case adapters.

Kit includes: adapter plate, coupler, seal housing adapter with transmission output seal (Marlin Crawler Eco-Seal where applicable), and hardware kit.

Weight	7
Dimensions	12 × 12 × 4 in

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