So I've been checking prices online and finally called the shop that did our lift since they're getting the truck back Wed for the recall. Heck, might as well do them both at the sametime.
Well get this, they told me NOT to get it. CV shafts go bye-bye too easily. He just reiterated what PhilD has said many times, that the front locker is nice to have, but you can really damage some other parts.
Saved me some cash.
