Motor Mount Kit, Polyurethane Bushings 1984-pontiac-firebird-esi1382254 Drilling two 3/8” holes is

Drilling two 3/8” holes is required (no welding)

and a durable powder coat finish

providing increased strength and rear end adjustment

The optional spanner wrench allows for easy adjustment and disassembly of the Roto-Joints for maintenance

coupled with soft material produce excessive differential movement during normal and aggressive driving

Motor Mount Kit, Polyurethane Bushings 1984-pontiac-firebird-esi1382254 Drilling two 3/8” holes isEngine movement (deflection) is wasted horsepower, and that power is yours! BMR Suspension wants you to take it back with its polyurethane motor mounts for 2005 to 2017 Ford Mustang. BMR's new motor mounts (MM007) are far superior to the bulky, stock bushings, which are designed for comfort, not performance. BMR manufactures its MM007 polyurethane motor mounts in its Florida facility from CNC laser cut ? inch plate steel with aircraft grade 7075