Fox Mustang Drag Suspension - UPR Management

The final positioning, welding, and adjustment are done after the rearend is reinstalled.

Mase uses the 'Stang's original upper control arms to preadjust the new UPR Pro-Series uppers.

The arms are installed with spherical bushings mounted in the 8.8 rearend. The new bushings alleviate any binding of the rear suspension when the car launches.

Installing lower control arms is the final task prior to locking down the antiroll bar.

With the arms in place, Mase uses a magnetic level and two pole jacks to adjust each side of the rearend until it's perfectly straight.

The level is then checked against both antiroll-bar links to confirm they're straight, and index marks are made on the housing.

Tabs for the antiroll-bar links are welded against the reference indexes. It's important to triple check the straightness of the links and rearend housing before making this commitment.

A pair of unknown round-tube subframe connectors is already in place, but Mase intends to cut those off and install this set of UPR's full-length subframe connectors (PN 2010-2; $129.99). The 131/44x2-inch UPR connectors include crossbraces and reinforcement plates that add strength to the chassis and floorpan. They're designed to complement the torque box reinforcement plates Mase already installed.

With the Cobra's underpinnings in much better shape, it's on to the next phase for Project 9s-for-10.