Our inner CV’s range from a standard tripod design to a super tough Billet housing that is stronger than most cross groove CV’s. The 108mm CV is good, but suspension movement in certain applications will not allow it to be used. We have changed some of the different style CV’s around to better accommodate suspension setups and allow for vehicle manufacturing inconsistencies over the years. The billet inner housing shown above is stronger but heavier than the 108mm style and will be stronger than any bar we put into it. We had first used this in the SRT8 and GTO axles only to find it was great for a race car, but on some of the early runs the housings were too soft (to help with shock loading) and would wear out prematurely on daily driven cars.
Tripod design CV’s have been around for a very long time. They are relatively strong and for a stock car they work very well, the only problem with them is that if too much HP is put through it, the outer roller bearings will crack and break. The other problem is that it is not a real CV. The term constant velocity is true to the statement, meaning that the torque load put in will come out in a steady path. The Tripod is more like a 3 legged U-joint that speeds up and slows down as the shaft spins. Its normally lighter but has its disadvantages in certain situations, the worst being a lowered car or if the axle is run at a higher angle. Most of our high powered axle inner CV’s on cars that have angle issues have been changed over the years to ball and cage design like the billet CV shown above.