No. You definately don't want water in your CV joints. It will ruin yer lube, then ruin yer CV joint, then ruin your pocket book. Which eventually leads to ruining the fix you just made with the wife about driving the rig through a river in the first place! "What were you thinking?" <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
The boot does naturally create negative pressure(suction) with supesion tavel, but if your clamps are as tight as they should be, they won't allow this to happen.

</font><blockquote><font size="1" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">quote:</font><hr /><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">Originally posted by Jakebs:
<strong>... but if your clamps are as tight as they should be, they won't allow this to happen.</strong></font><hr /></blockquote><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">My concern isn't with the clamps... it's along the seam. IIRC, the screw-type boots (the favorite, from the sounds of it) have a screw at each fold along a tongue-in-groove seam that doesn't look like it would keep water out under negative pressure.

Do you also glue the seam to seal the boot?

BuddyWh

<strong> </font><blockquote><font size="1" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">quote:</font><hr /><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">My concern isn't with the clamps... it's along the seam. IIRC, the screw-type boots (the favorite, from the sounds of it) have a screw at each fold along a tongue-in-groove seam that doesn't look like it would keep water out under negative pressure.</strong></font><hr /></blockquote><font size="2" face="Verdana, Tahoma, Arial, Helv, Helvetica, Sans">It's a valid concern about the water. Since I do most of my wheeling in Colorado, mud and water tend to be the exception rather than the rule.

With my split boots on I did ford a lot of streams, though, that were well above the hub. And like I said earlier ... one was one for about 50,000 total miles. When I pulled that split boot off (it had actually been ripped for awhile) the joint was still well greased and it looked to be in good shape.

If you do a whole lot of stream crossings (like deep crossings every single weekend) and/or a lot of mudding, then I can see how you could have a concern. I really think the seal is good enough, and with my experience I wouldn't hesitate, but I wouldn't want to take responsibility for someone else's CV joints.

That would make the popover boots a good choice, since they only take an extra hour or so to install. And if you're doing both inner and outer boots, I don't know that they take any more time to install 2 popover boots than two split boots.

A better mechanic could probably install either faster than me, BTW, as I'm not especially talented.