99-04 Ford SuperDuty 4x4 Rear Shackle Flip 4.5"
What it is:
Rear shackle kit that flips the orientation of the shackle to gain lift without the use of aftermarket leaf springs.
What it does:
Adds 4.5 inch's of lift and increases articulation by allowing the spring to follow its natural arc.
What it fits:
99-2004 Ford Super Duty trucks (F-250 F-350) and Excursions
Whats recommended to complete this kit:
- Add a 4.5" front lift hanger kit FORD-FLK-004 for a total 4.5" lift to match the rear
What is included in this kit:
2 - Rear Hangers
8 - 1/2" bolts
8 - 1/2" nylocks
8 - 1/2" SAE washers.
Kit can be installed in as little as 45 minutes! Use's existing rivet holes as pilot for new bolt holes on flip kit bracket. Please note on Excursions, you will need to drill 2 new holes as these brackets mimic the truck bolt pattern, Excursions were lowered by raising the spring mount brackets. This will yield about a 5.5" lift on the Excursion.
On long wheel base vehicles, retaining lift blocks, we recommend a 3 inch lift block with a 4 degree taper replace the factory blocks, in reverse of stock. This will correct pinion angle and move the axle slightly rearward.
The best way to get exactly the correct angle is to install the kit and then get a pinion angle measurement and correct as needed.
On vehicles using aftermarket lift springs, or an add-a-leaf lift, it may require that you move the front solid hanger rearward up to 2-3 inch's.