Transfer case chain (BW4484)

Common symptoms of a stretched BW4484 chain include a loud clicking or popping noise during hard acceleration, jerking sensations when the 4×4 system engages, or a ‘slipping’ feeling. If the chain is loose, it may skip teeth on the internal gears, which can eventually lead to housing damage.

Yes, this chain is specifically designed for the BorgWarner BW4484 transfer case, which is most commonly found in Hummer H2 models. Always verify your transfer case model tag before ordering to ensure a perfect match.

In most cases, a clicking noise under load is caused by a loose transfer case chain. When the chain stretches beyond its limit, it loses tension and jumps over the sprocket teeth. Replacing the chain promptly can prevent you from having to replace the entire transfer case unit.

Replacing a BW4484 chain is a mid-to-high level DIY task. It requires removing the transfer case from the vehicle and splitting the case open. If you have experience with drivetrain components and the proper tools (like snap-ring pliers and a torque wrench), it is a manageable project; otherwise, professional installation is recommended.

Absolutely. A fresh chain ensures consistent and uniform power transmission between the front and rear axles. This restores the optimal torque split required for off-road performance and stable driving on slippery surfaces.