I have used a Detroit axle in the past with no complaints or problems. Coulter and intermediate arm ball joints wear out in less than 2 weeks. I didn't even try to guarantee them (the Detroit Axis has a great guarantee policy), the bipod arm is a PITA that needs replacing and I didn't want to risk making them a third time. Would return the whole set for a refund but after Amazon's 30 day guarantee. Reinforced sloth and crankset cost me 3x what I paid for this kit.