488 Magnum Designs

488 Magnum Designs Offering US made custom truck parts from our trucks to yours! Specializing in 72-01 Dodge, 73-91 GM, 73-79 Ford trucks.

Freshly washed and both in the home garage at the same time for the first time.
06/03/2026

Freshly washed and both in the home garage at the same time for the first time.

Finally got the 73 Ford running well. Dug into the carb to find it full of sandblast sand from the previous owners frame...
06/01/2026

Finally got the 73 Ford running well. Dug into the carb to find it full of sandblast sand from the previous owners frame restoration. Swapped out the old 750cfm summit carb for a fresh 600cfm. Added a 10 micron fuel filter to keep any remaining debris out. Little bit of tweaking to the tune and it will be running like a top. Next up alignment and get the tires swapped onto the correct Ford wheels.

Evening cruises.
05/27/2026

Evening cruises.

Made some updates to our product catalog including some kits for Dentside Fords and 318/360 Magnum engines!
05/19/2026

Made some updates to our product catalog including some kits for Dentside Fords and 318/360 Magnum engines!

This weekend’s project was neatening up the daily Subaru and servicing it. Previous accident damage and poor paint work ...
05/18/2026

This weekend’s project was neatening up the daily Subaru and servicing it. Previous accident damage and poor paint work led to a rusty fender. We do a little of everything around here.

New Product! Fix your Dentside Ford interior door panels.
05/15/2026

New Product! Fix your Dentside Ford interior door panels.

Door panel repair tabs for Dentside Ford pickups. Repair your door panel where the clips have broken off. These are 3D printed in ASA and intended to be plastic welded in place restoring the ability retain the clip to the door panel. I kit will repair 1 door panel.

New product now available! Rocker bolt kit for 92-03 Dodge/Jeep V8 Magnum engines (318/360)
05/14/2026

New product now available! Rocker bolt kit for 92-03 Dodge/Jeep V8 Magnum engines (318/360)

Upgrade your valvetrain reliability with our premium Rocker Arm Bolt Kit designed specifically for 1992–2003 Dodge/Jeep V8 Magnum engines using 5/16" rocker bolts.Factory rocker arm bolts are prone to fatigue failure, especially under high RPM or heavy load conditions. This kit replaces the discon...

05/14/2026
Been out using the trucks and confirmed that the NP241C mates to the 4L80e for the Suburban project.
05/13/2026

Been out using the trucks and confirmed that the NP241C mates to the 4L80e for the Suburban project.

Took the old Ford out for a drive. Needs some wiring work to fix the headlights. They start to blink after they have bee...
05/05/2026

Took the old Ford out for a drive. Needs some wiring work to fix the headlights. They start to blink after they have been on for a bit. Time for a heavy duty relay conversion.

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Dyersville, IA

Opening Hours

Tuesday 4:30pm - 5pm
Wednesday 4:30pm - 5pm
Thursday 4:30pm - 5pm

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