Yea don’t, do it if you’re in a pinch and have no choice to get you home just to see the internals, but don’t drive it over 30mph and use a crap load of zip ties.
These things ever work, they let in dust and crap you’re trying to keep out, and it’s a marketing gimmick that you should avoid at all costs.
If your boot is already torn, I guarantee you have crud and dirt and grit already inside the grease and you’re going to cause more damage.
Take the axle out, take the boot off, take the spindle out of the CV joint and mark with a file on the edge of both rings a tiny index mark to reference when putting it back together and keep track of the balls in order like hours on a clock hand so they all go back the same way. take it apart, it’s not too hard, just tricky, clean everything in some solvents and finish with acetone to ensure to residue remains from the solvents, put it back together, now pack with new grease and put your new boot on with proper strapping. Make sure you get an OEM or high quality boot, not that crap from box stores that lasts 6 months.
BTW reman shafts are JUNK and will last maybe 6000 miles if you’re lucky. Rebuild your own axles, and get parts from junk yards if you must replace some parts.
Rebuilding a CV axle should take you about 4 hours max; it’s not difficult, just tricky.
