Rugged Radios R1 Crew Chief Radio Package w/ H42 Spotter Headset - Dual Radio - VHF/UHF - Safety Yellow M342HV the valve locks are for

the valve locks are for a bigger size stem

1965-1981 Cadillac DeVille

2-7/8 in Spindle Nuts

100-1000 HP

Rugged Radios R1 Crew Chief Radio Package w/ H42 Spotter Headset - Dual Radio - VHF/UHF - Safety Yellow M342HV the valve locks are forCrew Chief H42 Spotter Headset and Rugged Handheld Radio Package is specifically designed for Crew Chiefs and spotters. This kit is inclusive of Rugged Radio's H42 headset, coiled headset jumper cable, and handheld radio, aiming to provide clear communications for NASCAR and IMSA circle track and road racing crew chiefs and spotters. You may opt for the fully digital 16 channel RDH for ultra clear communication or the common dual band R1 with digital