Allstar Performance Spring Pre-Loader - 3" - 14" Tall Spring 58 1972-1986 Pontiac Bonneville

1972-1986 Pontiac Bonneville

20 x 18 x 10 in Tall

1973-1979 Pontiac Grand Am

The two-piece aluminum body uses a single 3/8"NPT inlet port on the bottom

Spring Steel Fuel Filter Bracket - Durable Rubber Coating - Simple Installation - Easy Filter Maintenance - Budget Friendly Can be used with the following Fuel Filters: 12301

Allstar Performance Spring Pre-Loader - 3" - 14" Tall Spring 58 1972-1986 Pontiac BonnevillePre loader allows use of a softer spring rate that is pre loaded at ride height. The pre loaded spring will have less rate increase as the suspension travels. For example, a 150 lb. in. spring can be preloaded to 400 lbs. at ride height, but still only increases at a rate of 150 lb. in. as suspension travels. The entire unit may also be exchanged with another unit with a different rate spring pre installed to allow spring rate changes without