Aluminum throttle assembly has spring-loaded pad like OEM design. Removable lower arm is splined for versatility in mounting to the right or left of the mounting bracket. Exclusive upper arm is a one-piece design. Matching brake pad is designed with a 1/2 in.-20 thread and includes a 1/2 in.-20 stud in kit. Can be mounted centered or off center. Dimmer fits both Chevy and Ford. XL Series aluminum pedals are designed just like our standard billet aluminum pedals, but have an extra large pad for those seeking more comfort.Specifications: WARNING CA Proposition 65 Yes WARNING CA Proposition 65 Message WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Description_DES Throttle Pedal Assembly Description_EXT Throttle Pedal Assembly; Midnight Series Black; XL; 2 in. x 5 in.; w/Rubber Inserts; Billet Aluminum; Description_FAB Assembly Has Spring-Loaded Pad Like OEM Design Description_FAB Removable Lower Arm Mounting To The Right Or Left Of The Bracket Description_FAB Exclusive Upper Arm Is A One-Piece Design Description_FAB Designed With A 1/2 Inch-20 Thread Description_FAB Includes A 1/2 Inch-20 Stud In Kit Description_FAB Can Be Mounted Centered Or Off Center Description_FAB Have An Extra Large Pad For Those Seeking More Comfort Description_MKT Aluminum throttle assembly has spring-loaded pad like OEM design. Removable lower arm is splined for versatility in mounting to the right or left of the mounting bracket. Exclusive upper arm is a one-piece design. Matching brake pad is designed with a 1/2 in.-20 thread and includes a 1/2 in.-20 stud in kit. Can be mounted centered or off center. Dimmer fits both Chevy and Ford. XL Series aluminum pedals are designed just like our standard billet aluminum pedals, but have an extra large pad for those seeking more comfort. Description_SHO AclPdlAssy