OEM style 27 Spline CV's made from 4340 Chromoly.
These have been tested to 5600 ft/lbs where the stock axle shaft broke but the CV remained intact. A stock CV will suffer bell failure at approx 4000 ft/lbs.
These CV's are not recommended for use on rigs with high horsepower and large Tyres. There are other products best suited for those applications.
These CV's come with a Locktup 4x4 Exclusive 2 year warranty on falure of the bell, star and shaft for vehicles running up to 35" tyres with standard Toyota OEM engines.