April 1, 2002 by fourwheeler mag
We recently hooked up with Holbrook Specialties in Gladstone, Oregon, which is making a serious impact on the local rock-crawling business with its new LongLeaf suspension system. It's also not exactly "just" a spring, and brothers Ed and Gary Holbrook have put a lot of developmental time into the product. The LongLeaf system delivers tremendous suspension travel without the use of coils or track bars or massive and costly welding, steering, driveline, or chassis modifications. This system is almost a bolt-in setup that simply replaces the Jeep's stock leaf springs with longer asymmetrical springs so you won't spend a lot of time or money on parts swapping
This unique asymmetrical spring design is at the heart of the system. Each LongLeaf spring is 7-10 inches longer than the stock springs they replace, but the axle locating pin is off-center in the spring. This places the axle in its stock location with a stock amount of spring out towards the shackle end of the spring, and a much longer segment out towards the fixed-eye end. The result is a tremendously flexible spring, which, at the same time, maintains firm axle positioning for handling stability. The LongLeaf springs are also made with an extra arch to lift the Jeep 3 to 311/42 inches depending on the model. On a CJ-7, for example, that's enough lift for 33x12.50 tires.
Each LongLeaf kit includes four leaf springs, four replacement spring eye brackets, and all associated bracket hardware. The original bolts are used on the shackle end of the springs. The kit is available for all CJ Jeeps from '45 through the last CJ-7, plus all military MB, M38 and M38A1 units. All early model Jeep LongLeaf kits retail for about $650, and kits for '76-and-later Jeeps are priced slightly higher. Check out the details and see if this new product is right for your Jeep.