Riffraff Diesel Technical Knowledge Center
WARN Premium Hub Set (38826): manual 4x4 hubs that actually stay locked
May 1st 2026
If you’re done trusting (and fighting) the aging factory 4x4 hubs (or anything with plastic where it shouldn’t be), the WARN Premium Hub Set (38826) is the industry-standard fix: all-metal
… read more
The Right Hubs: 1999–2004 F-250/F-350 4WD Wheel Bearing & Hub Assembly (Coarse Thread)
May 1st 2026
If you’re hunting a replacement front wheel bearing/hub assembly for a 1999–2004 Ford F-250/F-350 4WD, the first thing that matters is stud thread pitch. This Axiom unit is specifically fo
… read more
Top 9 - 6.0 Powerstroke Problems That Get Worse When You Tow
Apr 29th 2026
The 6.0L Powerstroke can tow extremely well, when it’s healthy. The problem is that towing exposes every weak link. Heat climbs, boost demand increases, fuel demand goes up, and the high-pressur
… read more
Top 10 7.3 Powerstroke Parts to Replace Before They Leave You Stranded
Apr 29th 2026
The 7.3L Powerstroke has earned its reputation the honest way: by generally refusing to die for decades. But even the best diesel ever stuffed into a Ford pickup is still attached to 20-plus-year-old
… read more
7.3L Powerstroke HPOP Replacement - Step By Step How To
Apr 24th 2026
If you are replacing the HPOP on a 7.3L Powerstroke, having a step-by-step guide matters. These instructions cover the required parts, recommended tools, pump installation, IPR reassembly, oil refill,
… read more






