When it comes to making a decision on what rear end to use in your Tri-5, there really is no substitute for the Ford 9” from the 9 Inch Factory. Yes, there are a lot of them out there, but the 9 Inch Factory is by far the best quality and fit on the market– plus it’s made in the USA.Part # 21-238-PC) Ordered with a 3.73 gear, 31 spline, in black powder coating. We are staging the location for this monster to be mounted to the chassis.
We are installing the 2” drop lowering springs (Part # 21-144).
Line up the center tabs of the springs to the mounting perches of the differential.
This chassis is equipped with Eckler’s Rear Spring Pocket Kit (Part # 21-131). (For installation see this link: http://www.classicchevy.com/assets/pdf/classicchevy/21-131.pdf
Mount the front of the springs to the frame and use new U-bolts (Part # 21-33) to mount the springs to the differential.
We chose to use KYB performance shocks (Part # 21-57). Mount these to the custom shock bar (Part # 21-228) and to the shock mounts. Install your brake lines (Included with the differential from the 9 Inch Factory.)
Since the rear differential and rear suspension are in place, we are one step closer to a rolling chassis!