We received our IRS upper and lower control arm adjusters today from Mike Forte at Fortes Parts Connection. Their anodized black, and will allow rear IRS suspension alignment on the car while everything is connected. No need to mess with spacers down the road.

Per this thread, some people are reporting 2 issues with half shaft supplied by Factory Five with the complete Mark IV kit: https://www.ffcars.com/forums/17-factory-five-roadsters/322145-cv-half-shaft-question.html#/topics/322145?page=2 Some report: 1. The half shafts are too short by approx 9/16" 2. The splines on the end that goes into the diff are not machined long enough for the shafts to seat properly and the circlip to engage before the spline's shoulder bottoms out For those that had issues, the splines are only 1 1/2 " long, and the fix...

Thanks to my friends Jim and Brad, we got the independent rear suspension differential installed tonight. It did not go in easily. Had to remove the rear diff cover to get it in. Here are the steps we took: Turn the diff vertically and rotate 90° before attempting to move it up into position. Using a jack (and some friends to keep it stable), jack the diff straight up vertically though the IRS cage on the chassis. Once the diff clears the...

In order to clear the chassis the Cobra Differential Carrier needs to have the top-front ground down a little. I used a few different double-cut carbide rotary burr bits on a 1/4" die grinder to get the bulk of the metal removed, followed by some finishing work using 2" Coarse Roloc Surface Conditioning Discs from 3M. The end result is a smooth surface. I'm leaving this as it is for the moment but I'll likely come back later to...

King (2bking) on FFCars.com designed some sheet metal that modifies the footbox and firewall to better accommodate the Coyote motor in the Factory Five Roadster. The modifications allow for more room near the top of the motor and kicks it into the interior of the car, then kicks it back out of the footbox at the bottom leaving more room for your feet. The modification also angles the front of the footback a little to leave more room for headers to make...

The paint on the front-side of the rear wheel arches takes a serious beating from sand, rocks, and debris on Cobras. To protect the paint, I previously ordered the traditional aluminum Side Spats seen on some original street Cobras. The Featured image above shows what those look like. I also ordered some 3M Scotchguard versions, which are thick clear vinyl which are invisible when installed. MikeInAtlanta had some extra laying around and was running a special to clear it out....