I have a 99 dodge 3500 DRW and I am swapping out the rear end to a 2001 disk brake and completely rebuilding it I just would like your opinion on which diff cover to get the aFe Rear Dana 80 Differential Cover w/ Machined Fins which holds one extra quart or the Mag-Hytec Dana #80 Differential Cover in which hold an extra four quarts

Thx

 

First one. One extra quart should be adequate to the task, unless you are regularly pulling train cars cross-country.

 

Thanks