22-73952-000 Freightliner Cascadia Cab Extender Attachment Arm Kenworth T800 The RM-101U is a heavy-duty

The RM-101U is a heavy-duty ball mount engineered as a direct alternative to RAM-style mounts

which reduces fuel economy

While standard components often fail due to material fatigue

They mount on the same understep fairing panel — when one fails

First-generation chassis only (1994–1998)

22-73952-000 Freightliner Cascadia Cab Extender Attachment Arm Kenworth T800 The RM-101U is a heavy-dutyThe 22 73952 000BP is a direct replacement for the OEM 22 73952 000 short lower cab extender attachment arm on the Freightliner Cascadia, mounting at the factory locations without drilling or modification. This arm shares the failure mode of its longer companion. Over time the factory fit relaxes, and sustained road vibration drives the M6 nutsert against the thin fiberglass of the sleeper wall, enlarging the mounting hole until the fastener loses its