Precision 6061 aluminum shift tower bushings for GM & Dodge NV4500 and NV5600

Eliminate shifter slop and restore crisp, precise gear changes with our CNC-machined heavy-duty aluminum shift tower bushings built to outlast factory plastic.

Built for the shift

Factory plastic bushings wear out quickly under heavy towing and daily driving, causing loose, vague shifts and missed gears. Our solid aluminum shift tower bushings are direct-fit replacements engineered specifically for NV4500 and NV5600 manual transmissions. CNC-machined for ultimate durability, tight tolerances, and rock-solid shift feel. You must have an original OEM square top shift tower! These were not designed to work with aftermarket towers. You must verify the correct size before ordering. 

Durable aluminum construction

Say goodbye to brittle stock plastic. Our heavy-duty aluminum shift tower components withstand heat, vibration, and hard shifts without deforming or cracking. Install once and enjoy consistent shifting that the factory only dreamed about!

Ready to restore your shift feel?

Whether you're hauling heavy loads or building a reliable daily driver, our aluminum bushing kits provide the direct, positive shift engagement your truck deserves. Simple installation with standard hand tools.

"Night and day difference on my NV5600. Shifting is tight, positive, and feels better than it did brand new. Best five-minute upgrade you can do."

Verified NV5600 truck owner

Frequently asked questions

Find quick answers regarding our aluminum shift tower bushings, transmission compatibility, and installation process below.

Will these bushings fit both NV4500 and NV5600 transmissions?

Yes, we manufacture dedicated precision aluminum bushings designed specifically for both NV4500 5-speed and NV5600 6-speed manual transmissions found in Dodge Ram and GM heavy-duty trucks.

What tools are required for installation?

Installation requires only standard automotive hand tools. You typically need a metric socket set, a torx set, and screwdrivers to remove the interior console, shift boot, and shift tower cover.

Why choose solid aluminum over factory plastic?

Stock plastic bushings degrade rapidly from cabin heat and shifting friction, causing slop and play. Solid CNC-machined aluminum never degrades or cracks, delivering permanently crisp gear changes.

How fast do orders ship?

All in-stock components ship promptly from our Livingston, Texas facility via UPS and USPS

Contact us

nv4556.com
Livingston, TX, United States

Have questions about fitment or ordering? Send us a message through the contact form.