Some time ago I was testing shocks for Reyco-Granning on our DSDP after the change to the 14,600# front axle. They sent me 5 sets of shocks over a couple years. The first ones were Bilsteins and the last were Koni adjustables as they don't make FSD's for that axle. The last set of Bilsteins were very good but I put the Koni's on anyway.
Then I found that Bilstein made a Comfitrac for that axle but they were out of production by the time I found out. (although by now they may be available again)
Got to looking at the ones I had left (3 sets of various Bilsteins) and found that the last one they sent me was the one I've been looking for for several years now!! (F4-BE5-C671-M0)
I only ran them a few hundred miles before the Koni's came and I thought they were pretty good. Guess I'll put them back on and give them another try.
Amazing what you can find in the junk heap!
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 Jeep JKU Dragon Edition