Yunnergo ACA-1800 Column Shift Linkage Kit for GM 700R4 — Adjustable, Precision-Machined Rod

If your vehicle uses a column-mounted shifter and a compatible GM automatic transmission, the Yunnergo ACA-1800 kit provides a precise, adjustable replacement linkage engineered to restore correct shift feel and lever travel. Built from selected materials and machined for consistent fit, this kit replaces worn stock linkages or adapts column shift setups to a range of transmissions including TH200, TH350, TH400, 200-4R, 700R4, 4L60, 4L60E, and 4L80E (not compatible with 6L80E).

How does this kit improve shifting performance?

The ACA-1800 refines the connection between the steering column and transmission so shifts are more positive and repeatable. Its precision-machined rod and joints reduce slack and eliminate vague lever movement often caused by worn or misaligned linkages.

• Precise rod geometry for consistent gate positions
• Tight-machined joints to reduce play and noise
• Adjustability lets you fine-tune lever travel and neutral alignment

Which transmissions and vehicles will this fit?

This linkage kit is designed for a wide range of GM automatic transmissions commonly used in column-shift applications. It lists specific compatibility and excludes the 6L80E, so confirm your transmission model before ordering.

• Compatible: TH200, TH350, TH400, 200-4R, 700R4, 4L60, 4L60E, 4L80E
• Not for use with 6L80E transmissions
• Works with most stock column-shift steering columns using standard mounting interfaces

What adjustments can I make and why do they matter?

The ACA-1800 is adjustable by changing connecting rod length and angle so you can align lever positions and optimize throw. Proper adjustment ensures accurate park, reverse, neutral, and drive positions and improves driver confidence when shifting.

• Length adjustment alters shift lever travel
• Angle adjustment aligns gate positions and neutral
• Fine-tuning reduces bind and prevents premature wear

How difficult is installation for a do-it-yourselfer?

Installation is designed to be straightforward and fast, with a layout that integrates into most column-shift systems without complex modifications. Basic tools and mechanical knowledge are sufficient; most installers can complete the swap in a few hours.

• Pre-drilled and machined interfaces for easy assembly
• No complicated adjustments required to fit most setups
• Clear mounting points let you re-use existing hardware where applicable

Who this kit is for: The Yunnergo ACA-1800 is aimed at classic truck and car owners, restorers, hot-rodders, and anyone replacing a worn column shift linkage or converting a column shifter to a compatible GM transmission. Choose this kit if you need a durable, adjustable replacement that restores precise shift positions and improves everyday drivability without complex fabrication.

Features snapshot:

• Fitment: Adjustable column shift linkage compatible with TH200, TH350, TH400, 200‑4R, 700R4, 4L60, 4L60E, 4L80E. Not for 6L80E.
• Replacement part numbers: ACA-1800, CB5010, D292-SHLTH400.
• Adjustable length and angle for precise lever travel and alignment.
• Precision-machined connecting rod and selected materials for consistent operation.
• Engineered for quick, straightforward installation into most column shift systems.