Originally Posted by senix

Class IV rating, typically 10K

Originally Posted by BarnieTrk

WE3ZS,
First off, what a BEAUTIFUL EX! In a 'previous life' I had a '05 EB EX, 4X4 6.0 PSD as a company truck...man, I loved that truck!

All,
I'm in agreement for clean, yellow zinc plating/coated, Grade 8 bolts with a Grade 8 flat washer,one at bolt head and one at nut end, with Grade 8 spring-lock or split-locking washers and standard nuts. Blue thread locker is optional, but not required. Red loctite may require heat to remove. To assist in the corrosion-resistance, twice a year I use a hand sprayer to dampen the hitch connectors with diesel oil (fuel oil); to keep the rust to a minimum..... It works for me - 'your mileage may vary'.

BarnieTrk

Originally Posted by Cummings Guy

Now that I know more about this sort of thing I have a question.

Is the 10K with load distribution or without?

Originally Posted by HRTKD

On my half ton truck's OEM hitch the 10K was only with WDH.