The background and story: Full disclaimer, I am running Tundra axles that I purchased used off
Ebay. They were described as 2013 model year parts with 30k when truck was wrecked. I have put 35K on them since install. I was towing our boat and had made it about 50 miles when I started feeling a vibration. couldn't tell if it was the road, the trailer, or the truck. Suddenly the vibration got worse and it was definitely the truck. I got of the freeway and to a parking lot as soon as I figured out something was wrong and it was right under my feet.
when we stopped there was smoke (very little puffs) coming out of the CV boot. The boot looked good, except for where it separated from the heat.
I've been working for months rebuilding our pontoon/houseboat (pondominium) and this was our maiden voyage. I ubered to enterprise, rented an econo-box to get the wife, kids, and dogs to Uhaul; where I rented a truck and soldiered on to the lake. We enjoyed the afternoon, evening and next morning before calling for the tow truck.
I tore everything down last night. I had to hammer the joint apart. The inside is coated with burned on grease. The inner part of the joint looks to have a very slight twist to it. The cage and bearings show signs of metal to metal scraping/gouging.
Luckily I hadn't sold my original cruiser axles and tore one down for parts. The pile on the right has 140K on it and still looks pretty good.
I needed everything back together to drive to work, but I plan on tearing down the passenger side this weekend to check it.
I'm hoping some of you guys here with more experience working with CVs will have some ideas as to why it failed.
Thoughts so far:
1)
ebay part with more than 30K miles
2) combination of lift and towing less than optimal
3) Tundra conversion pushes CV to the base of the inner cup and there wasn't enough room to move freely
4) crap grease that came with aftermarket boot was insufficient in volume or quality to keep joint alive.