Assessing & Removing The Carnage
The ute made it to half track and loudly limped back to the pits where we loaded her onto the trailer. A quick look revealed the rear differential housing mount could not take the torque and had snapped clean off. The built internals and axles held up their end but the housing itself was the weak point that failed. The next day we put the car on the hoist and had a better look. Not only were we looking at a broken differential housing but it destroyed the rear sub frame and diff cradle, moving the upper control arms over 15mm in their mounts. The massive uni in the built drive shaft had splayed open like it was made of plastic, the exhaust system was damaged and the fuel cell had taken a hit too. It was a shock to see how much damage had actually been done.
Starting From Scratch – Again
The build route, components & setup we were advised to take wasn’t at all suitable or up to the task. So we contacted Billy from G-Force Engineering in Wichita Kansas. He said it was a common weak point & failure in the Camaro & Corvette’s – anything over 850 RWHP will break the diff housing and kill the rest of the rear end. This is mainly due to diff hop or axle tramp.
So we took his advice and went for their 9″ IRS Kit with 1500hp anti hop Outlaw Axles. Having one axle engineered to be a greater torsional strength than the other eliminates the diff hop.
We will need to get our drive shaft repaired and modified to suit the new 9″ diff yoke.
Part 2 Getting All Of Our New Parts Together
In Part 2 we’ll start putting all the new and upgraded parts together, plus a couple of nice touches like the S1 Sequential Shifter for our Magnum XL Transmission. Waiting for the Christmas break to finish will be frustrating….