The install video shows how the actual brace attachment point on the case is to a 3 bolt section of the cover. I'm thinking the design might actually stress and compromise that section of the case cover under inevitable torque movement possibly resulting in a potential breakage point that doesn't exist without the brace. From what I can gather diff failures generally seem to begin occurring within the case which a diff brace won't prevent. Challenger R/T Gets a Per4mance Development Differential Brace Installed.
This is Mark Blaha's (Magnuson Products) response: The brace is a good idea. I’m not sure how much it will go towards keeping you from breaking your dif, but it should help with wheel hop which theoretically should help. The other problem is the wind-up on the outer hubs. You might want to look at lower trailing arm upgrades. They make more rigid arms with either Poly bushings or hiem joints. Fortunately I'm not experiencing any wheel hop when tires spin on the street but haven't been to the track. My experience has been that manual trans cars with IRS are more likely to experience wheel hop.
I think they call it "the shakes" in Top Fuel classes. It's the sudden grab, release, grab, that is the enemy, yes.
I think it would help the wheel hop, But W/Slicks hooking up at the track, I am wondering if the rest of the drivetrain can withstand many launches without littering the track W/Parts ...?
I once broke the ring gear on a Dana 60 with an old NA 7.3 Navistar in an E350 van. Was a long time ago, but something made me hammer it, and it may have just engaged the gear in the transmission at the time.
I anticipated likely experiencing some wheel hop when I made the swap from the factory open diff with the 3.09 but fortunately haven't experienced any. The Getrag LSD with the 3.91 has dramatically woken the car up.
