Rennegade hybrids has cv joints that are a little beefier...
They are basically vw bus cv's... which are very strong.
"CV JOINTS AND AXLES
The weakest link in the 914 drive line is the CV joint. It can break without any warning and leave you stranded. While the 914 transaxle will withstand as much as 300+ ft. lbs. of torque, the 914 stock axles are only good to about 250 FPT at best. When you finally get accustomed to all that new power, and before you get stranded far from home, consider our complete high performance axle kits for your 914. Included our (4) new high performance CV joints, (4) new boots with retainer rings, (4) custom adapter flanges, (2) powder coated remanufactured axles, new hardware, and even two packets of grease!
$599 HIGH PERFORMANCE AXLE KITS: Good up to 500 hp! Sold per pair. (picture)"