Manufactured by Teraflex. These TeraFlex Universal SpeedBump Mounting Sleeves provide custom mounting locations for 3"-Stroke Rear Prerunner SpeedBump Bump Stops (# 1958260) in custom applications. Weld the mounting sleeve to the frame to mount the rear bump stop. FITS: � Custom applications SPECS: � TRAVEL: 3� INCLUDES: � SpeedBump bump stop mounting sleeves - Pair NOTES: � Cutting & welding required. � Universal 4"-Stroke SpeedBump Bump Stop Mounting Sleeve Kit (# 1944790) also available.