We accept product returns within 30-days after you have received your order. All returns are subject up to a 20% restocking fee after approval.
FORD-FSRSD-002-Raw
Description:
Application:
Additional Information:
Check out Diesel World's Project Obsessed running Sky's FSRSD (RSK) Kit
NOTE: Cheap, foreign aftermarket springs are not recommended. We have had issues with the military wrap leaf being way too large and contacting the hanger. This is not an issue with quality USA-made springs.
Installation:
2" Shackle Reversal Instructions
4" Shackle Reversal Instructions
Check out Diesel World Magazine's install write up:
https://www.dieselworldmag.com/diesel-technology/project-obsessed-4/
Installation Notes:
Sway bar will need to be deleted, or will need end links extended. Our 3" Sway bar end link extensions are available here: 85-97 F-350 Sway Bar End Link Extensions
We have had a few customers with worn out spring bushings and sliders have issues with clearing the shackles on the 2" FSR kits with the military wrap. You need quality to specification parts to make this work (if using used springs with this kit).
Instructions for Replacing Leaf Spring Bushings and Isolators
It is common for the front frame horns to spread due to age as the only thing holding the front of the frame together is the rivets at the engine cross member. You may need to pull the frame together to get the hanger on.
These trucks were not built to a high level of precision. Some of the rivet holes may need to be opened up with a die grinder as the holes may not line up perfectly.
When installing this kit with lift springs, the springs are often shorter than stock as they are re-arched stock springs to get more lift. We recommend drilling just one hole for the spring hanger and holding it in place with one bolt until you are able to set it down and check to see that the shackle angle is satisfactory. Then drill the remaining holes.

We accept product returns within 30-days after you have received your order. All returns are subject up to a 20% restocking fee after approval.
The steering linkage upgrade for my Dana 60 axle is top shelf. The rep at OBS was excellent to deal with, Replies to my questions were very quick and helpful. The package arrived in a timely manner and in excellent condition. I highly recommend OBS for your custom parts and obs parts.
Great product! Easy to install one step closer to getting my Lighting restored!!
Excellent product and solution for my OBS Bronco
Great product arrived quickly
These guys are some bad dudes…….. and they probably don’t even know it. Bought this get to give the old girl a modern twist. I absolutely love it. Once again the instructions were spot on and install was a breeze. These guys probably didn’t even realize they gave me the perfect mount for my oil catch can too. Probably get roasted for where I have it mounted but it works great. These guys are changing the game one OBS at a time.
The steering linkage upgrade for my Dana 60 axle is top shelf. The rep at OBS was excellent to deal with, Replies to my questions were very quick and helpful. The package arrived in a timely manner and in excellent condition. I highly recommend OBS for your custom parts and obs parts.
Great product! Easy to install one step closer to getting my Lighting restored!!
I’m not to the point of using them yet, but they were well built, the complete kit and I’m sure they will be exactly what I needed to do this 5.9 Cummins to F250 conversion. They were exactly what was described, came with a diagram to know how to accomplish the installation and will save a lot of time from having to build them. Thank you