The goal is to use the existing 10 bolt carrier but strengthen it to handle the big block.  Many people aren't aware that you can build a stout 10-bolt for not too much money and end up with a unit that will easily handle the abuse of a mildly built big block.  The benefit is you end up with a rear end that is much lighter than a 12-bolt or Ford 9".  Our plans for the rear end include:

• 3.42 Richmond gears
• 30-spline axles
• 30-spline Eaton posi unit
• Welded carrier axle tubes
• All new bearing/seal rebuild kit
• Rear end cover with girdle / main caps support