Its easy enough to add grease to a crimped boot - pry off the clamp, use a syringe, put a new clamp on.
But there are problems:
1. you want to work grease into the joint, not simply add it to the expanse of the boot
2. you want to put in new grease as the old liquifies (on the track, it does)
3. You want to replace the boots regularly because, heaven forbid it breaks and dirt gets in, you are buying a new half-shaft
Its hugely time consuming to pull the two drive-shafts, and hugely messy to dis-assembly and grease them,
but i don't see a real alternative. For a street driven car, the only real issue is broken boots. Once again, you'd need to get the old one off and the new one on - which means it would need a seam (it would be a clam-shell). Those have been tried, but they are terrible, and, as you might imagine, don't hold up at hgih rpms (speeds).
What we really need is a silicone rubber, mesh impregnated boot. I keep thinking of doing some test marketing and making them - but the value proposition is meaningful only to a few people like us - the manufacturer/dealer probably sees replacement as a revenue opportunity *way* down the road, and how few of us will ever do a replacement twice.
I'm the curve wrecker doing it every two years preventatively for the track. BTW, my grease was turning to soup. In fact, when it gets hot on the track, it spits out of the vent hole on the end of the drive shaft. I bet few of you even knew it was vented - it is - there's small pin hold that goes from the end of the drive shaft (behind the actual hub cap) to the center of the CV joint.
I did the 2nd shaft *(already out of the car) in just over an hour. The first took twice that (with set up and clean up) and let's not discuss how long it took me to get them out of the car after i buggered the one nut. Obviously there's another buggered nut here.
Grant
Grant
gee-lenahan-at-gee-mail-dot-com