Build Resources


Build resources and restoration guides for vintage 4WD vehicles. Learn how to restore, upgrade, and maintain classic Scouts, Jeeps, Toyotas, Chevrolet, Ford and other vintage 4x4 platforms.
Front & Rear Disc Brake Conversion Kits for Early Jeeps and Scouts
Front and rear disc brake conversions transform the drivability and safety of early Jeeps and Scouts. The key to choosing the right kit isn’t the vehicle brand — it’s the axle beneath it. Identify the axle.Confirm the dimensions.Ignore the marketing labels. Build your braking system around the hardware that actually matters, and you’ll end up with a reliable, trail-ready setup that performs far beyond the original design. Read more...
Long vs. Short Wheelbase 4WDs: How Wheelbase Shapes Capability
Wheelbase isn’t about which is better — it’s about which is better for you. The most capable rig is the one designed around your terrain, travel style, and comfort needs. A short wheelbase rig may dance through rocks with precision.A long wheelbase rig may carry you comfortably across hundreds of remote miles. Choose the footprint that fits your adventures, and you’ll build a 4WD that feels right everywhere from the highway to the trailhead. Read more...
Why Fixing Vacuum Leaks Can Make Your Engine Run Worse First
Why Fixing Vacuum Leaks Can Make Your Engine Run Worse First The problem After fixing leaks, engines often run worse. This is normal. Before leaks were fixed ECM guessed airflow mixture compensated incorrectly richness masked instability After leaks are fixed airflow becomes accurate fuel demand becomes precise fuel delivery limits become visible This reveals the real problem. Diagnostic Steps STEP 1 — Expect changes Idle may worsen initially. This is normal. STEP 2 — Re-baseline fuel delivery Verify: pressure stability injector flow fuel supply STEP 3 — Re-evaluate mixture Check... Read more...
GM TBI Injector Flow Explained: Code 45 issues - Diagnostic path 2
GM TBI Injector Flow Explained: Code 45 issues - Diagnostic path 2
TEP 5 — Evaluate engine airflow changes More airflow = more fuel demand. Consider mid-flow injectors if: ✔ RV cam✔ rebuilt engine✔ improved head flow Read more...
Pre-Diagnostic Guide for Howell TBI Systems
Pre-Diagnostic Guide for Howell TBI Systems
Before you chase vacuum leaks, swap injectors, or question your Howell PROM, you need reliable data. WinALDL remains the most useful tool for diagnosing GM TBI systems — including Howell... Read more...
Howell TBI Jeep Won’t Idle? Fix Unmetered Air Before Tuning - Diagnostic path 1
Howell TBI Jeep Won’t Idle? Fix Unmetered Air Before Tuning - Diagnostic path 1
you may have unmetered air entering below the throttle plates. This is the worst possible leak location because the ECM cannot measure or compensate for it. Read more...
Picking the right 4WD project
Picking the right 4WD project
The best rig isn’t the one that looks impressive in the driveway — its the rig that you look back at and smile, the one that carries you on the... Read more...