There is a ratio between the thickness of the spacer and how much lift i
Spanner Wrenches
the factory 2" block is replaced with a 5" Block and u-bolt system
Works With Factory Wheels
IHC Suspension is excited to announce the most complete 2019-Present GM1500 3″ Front Lowering Control Arms in the market
73 - 87 Chevrolet C10 / K10 and GMC C15 / K15 Lowering Shock Extenders lift There is a ratio betweenIncludes: Lowering Shock Extenders Grade 8 Hardware Vehicle Fitment: 1973 1987 Chevrolet C10 2WD 1973 1987 Chevrolet K10 4WD 1973 1987 GMC C15 2WD 1973 1987 GMC K15 4WD Fitment Notes: Allows for running 4" rear drop using the factory rear shocks. Corrects the shock angle on the larger 5"+ rear drops. 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987 Chevy GMC C10 K10 C15 K15 2WD 4WD 73, 74, 75, 76, 77, 78, 79,