Avoid headaches and replace those pesky OE or aftermarket M14 sized differential mounting bolts with this KellTrac Big Bertha Diff Bolt kit. This kit includes everything you need to upgrade your S550's Diff to the largest and strongest bolt kit on the market!
- 15% larger than next strongest offering
- 25% more clamp than next strongest offering
- Industry's largest and strongest bolts, ASTM A574, 170,000psi Tensile Strength
- High Quality, High Strength Zinc Coated Grade 8 Flanged Nuts
- High Quality Name Brand HSS Drill Bit