Delivervalve filter mod:
DELIVERYVALVE filter mod
Lower Micron Fuel Filter Mod - PeachParts Mercedes-Benz Forum
There is 2 different filter mods in the thread. When I did the CAT Filter mod the Housing casting webs did not have to be modified. You only need to do that for the Baldwin and the WIX version of the Filter as they are slightly fatter.
Because the Filters are longer and the Casting of the Power steering bracket below I mad a plate with 4 holes and moved the filter to the rear about 1 inch. You can see the parts I used in post #10. Also in post #10 you can see the very little bit of grinding I needed to do to the stock filter housing to get the larger WIX and Baldwin filter to fit.