CV Joint Upgrades

VW Bug cv joints keep the wheels turning as the car soaks up the bumps. Most people upgrade them to "type 2" CV joints which are the ones found on the classic Volkswagan Van or Bus. Turns out Type II joints move about 22 degrees. Type IV are the same size as the Type II but move 27 degrees. Using Type IV joints means my axles can move 5 degrees more than the typical upgrade. They Type IV joints were used on the station wagon (Type IV), the VW Thing (Type 181) and several Porsche models like 928, 944 and others.



Lots of info about Volkswagen CV joints here.

Also, my transmission guy tells me everyone upgrades the CV bolts to 3/8"-24 which are much stronger than the stock bolt.  Drilling out the CV joints was a HUGE pain and took hours to get it all done right.  Same for rethreading the stub axles.

Here's some pics of cutting and rethreading the bolts themselves.  I got busy and forgot to take pics of the drilling and tapping of the other parts.  I cut down 3" bolts so that the "sholder" part of the bolt would cover the entire inside of the CV hole.  Again, a huge pain to do, but the end result is pretty nice.