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 constructio

Recommended Parts: Injector O-ring Kit: Part# AP000: https://www.riffraffdiesel.com/alliant-injector-o-rings/ CCV O-ring Kit: Part# GZ-8-004: https://www.riffraffdiesel.com/ccv-vent-cover-orings/   R

Injector cups are one of those 7.3 jobs where the tool matters as much as the parts. You’re working right over an open cylinder, and the old-school methods (big taps + slide hammers, or hammering cups

Room Temperature Vulcanizing sealant (aka RTV), or any other type of sealant usage is somewhat of a mystery for most of us. It's ok, you don't need to admit it, but we've all been guilty of rolling th

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Fuel%20Line%20SS%20Braided%20Hose%20Kit%20-%207.3L%2099-03.pdf Product Link: https://www.riffraffdiesel.

The 7.3L Powerstroke is one of the most reliable diesel engines ever built, but as these engines get older, many issues become more and more common. Hard starts being near the top of that list. But th

7.3L Powerstroke owners have always been ridiculed for marking their territory (i.e., leaking oil, leaving spots wherever they park). We’re going to plead the Fifth on the validity of that statement,

Believe it or not, rebuilding turbochargers is fairly easy and can be done with simple tools. We'll show you how, on a GTP38 turbo used in the 7.3 Powerstroke trucks from 1999.5 to 2003. These instruc

7.3 and 6.0 Powerstrokes use an injector cup that is pressed into the heads, plus a series of O-rings on the injectors to keep coolant, oil, and fuel, plus combustion gases, in the areas they’re suppo

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/RDP%20Coolant%20Filter%20Installation.pdf Parts Link: https://www.riffraffdiesel.com/riffraff-diesel-cool

Oil pressure is everything for a 7.3L. One of the most common questions we get asked is related to how to test the High Pressure Oil Pump (HPOP) on a 7.3L Powerstroke. We say related to, because the h

Summer and the towing season are in full swing. With the temps getting ready to go even higher across the nation, we figured it’s a perfect time to talk about some cooling system components: water pum

A good scan tool can save you a pile of money if you know what numbers actually matter. Codes are useful, but live data is where the 7.3 starts telling on itself. Hard start, no-start, low power, smok

The Edge Insight CTS3 is a digital gauge display built around a 5” high-resolution swipe touchscreen with multiple layouts, customizable colors/backgrounds, and a notification/alert setup so you can s

The 6.0L Powerstroke has a lot of famous problems, but the EOT/ECT delta is one of the easiest ways to catch trouble before it gets expensive. Bad numbers here can lead to failures across the board. T

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff%20Diesel%20High%20Flow%20Banjo%20Bolt%20Instructions.pdf Product Link: https://www.riffraffdiese

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff_PDF_Plenum_Inserts_Instructions.pdf Product Links: 1994- Early 1999: https://www.riffraffdiesel.

For a 7.3L Power Stroke IPR valve, the two solid choices are FoMoCo/Motorcraft and Alliant Power. The cheap “OEM-quality” valves are where the trouble usually starts. So what’s the difference?   First

Full PDF Instructions can be downloaded here: https://www.riffraffdiesel.com/content/RESOURCES/Riffraff%20Diesel%20HPOP%20JIC%20Hoses%2099-03.pdf Product Links:  HPOP JIC Line - Passenger Side Head 9

If your OBS 7.3 (’94.5–’97) has random misses, contribution codes, rough cold starts, or the classic “it runs better when I wiggle the valve cover plug”… you’re not imagining it. The under-valve-cover