KOONDHEEND ACA-1804 Adjustable Shift Linkage Kit for GM Transmissions | 2" Column Fit | 6ft Cable

The KOONDHEEND ACA-1804 Adjustable Shift Linkage Kit is crafted to bring more precise control and smoother gear changes for GM transmissions. This kit is built to accommodate a range of column setups and short shaft configurations, offering a practical upgrade for enthusiasts and professional shops alike. While you may not guarantee results, you can expect a more predictable shift feel when paired with compatible components and proper installation.

Direct fit and wide compatibility

Designed to simplify replacement work, this kit directly fits ACA-1804 and LB01-ACA-1804 units, reducing guesswork during setup. It supports GM and aftermarket columns from 1.5 to 2.25 inches, and it works with THM200-4R, THM350, THM400, 4L60, and 4L80-E short shaft configurations. Note that it does not accommodate Powerglide or long shaft 4L60E/4L80-E variants.

• Direct replacement for ACA-1804/LB01-ACA-1804
• Fits 1.5"–2.25" GM/aftermarket columns
• Compatible with THM200-4R, THM350, THM400, 4L60, 4L80-E (short shaft)
• Excludes Powerglide and long shaft 4L60E/4L80-E

Smart installation features

• Flexible 6 ft stainless steel cable routes around exhausts and brakes for cleaner routing
• Reversible cable design fits left or right column installations
• 0.5" pre-drilled holes for most applications, minimizing drilling on factory columns
• No drilling required on GM factory columns, preserving original integrity
• Pairs with BL-1400U safety switches for added setup options
• Includes a step-by-step manual plus video tutorials (search ACA-1804 install on YouTube)

Durability and performance

• 2000+ cycle testing supports reliable shift control under demanding use
• Stainless steel cable and aluminum mount provide long-lasting strength and resistance to wear

What you get and how we support you

• 6 ft stainless steel cable
• Aluminum mounting solution
• Instant 1-year replacement via Amazon Messages
• Free return if incompatible with your setup

For shoppers aiming to refresh shift performance on compatible GM transmissions, this kit offers a practical blend of fitment versatility, installation clarity, and ongoing support. It is designed as a thoughtful upgrade option rather than a guaranteed outcome.