Well built heavy duty. I did however need to grind some material from the plate located between the spare tire and the fuel tank to ensure adequate clearance should the bed sag that far when I hook up the 5th wheel. I also found that filling to the advertised 6 quarts would way overfill above the fill access hole on the differential. A web search found the same concern from many others on the web. I ended up filling with 5 quarts. That put the level on the dip stick to midway between the lower and upper marks.

the process of removing the old differential cover was a bit of a deal as I did not have anything wide enough to catch the oil. After figuring that out part the rest was easy.

after emptying out the old oil I did a good cleaning of the diff. there was a lot of metal stuff in bottom of diff and I was able to get that sucked up with clean towels.

Installing the new cover I cleaned the old gasket off surface. The new bolts and supplied wrench make this a dream.

Have to say the amount of needed oil now almost doubled to 6 qts.. the cover look cool .

Highly recommend this cover.