mbopp wrote:
There's a lot of chatter over on the Grand Design owners forum about leaking seals on Lippert axles. The problem seems to be more on the heavier axles, the 3500# ones don't have as many complaints.
mbopp is correct about the chatter on the Grand Design forum. No, Lippert does not use Zerk or "easy lube" fittings on these axles. The problem is in the assembly process with overpacking and contamination... probably aided and abetted by low-quality seals and/or hasty assembly. Lippert claims to have put the process changes in place to fix the problem by this past November, but buyers are still taking delivery of rigs with the issue in mid to late December. The only remedy is to disassemble, clean and inspect each hub/bearing/brake assembly, replace any contaminated brake components, repack the bearings properly, and replace the seals with good ones. Grand Design has been doing this under warranty for owners (and likely charging it back to Lippert, I'm sure).
Rob