Q&A Vlog: Choosing the Right Jeep 4×4 Model

Q&A Vlog:  Choosing a Used Jeep 4×4 for On-Highway and Off-Road Use! In this vlog, Moses Ludel shares his choices for a used on- and off-highway Jeep 4×4. Learn about the assets and downsides of the Wrangler YJ, TJ and JK, the Jeep XJ Cherokee and the Jeep Grand Cherokee ZJ and WJ models.    […]

Jeep Q&A:  YJ and TJ Wrangler Axle, Transmission, Transfer Case and Driveline

Jeep Q&A: YJ and TJ Wrangler Axle, Transmission, Transfer Case and Driveline

Q&A: Jeep YJ & TJ Wrangler Axles, Transmissions and Transfer Cases       Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding […]

Jeep Q&A: YJ and TJ Wrangler Fuel, Spark and Emission System

Jeep Q&A: YJ and TJ Wrangler Fuel, Spark and Emission System

Jeep Q&A: YJ and TJ Wrangler Fuel, Spark & Emission Systems      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and […]

4WD Mechanix Jeep 4×4 Section

4WD Mechanix Jeep 4×4 Section

4WD Mechanix Magazine’s Jeep 4×4 Section! This section of 4WD Mechanix Magazine focuses on Jeep 4x4s and SUVs, including maintenance, how-to, Q&A, upgrades, lift kits, engine buildups, tuning, suspension and powertrain upgrades. Emphasis is on restoration, hardcore Jeep trail runners, overland Jeep 4WD vehicles and Jeep off-road performance 4x4s. *Click on the “Site Content Directory” […]

Moses Ludel’s 4WD Mechanix Magazine – Rebuilding the Two-Barrel BBD Feedback Carburetor

Moses Ludel’s 4WD Mechanix Magazine – Rebuilding the Two-Barrel BBD Feedback Carburetor

Jeep How-to: Restoring a Carter BBD Two-Barrel ‘Feedback’ Carburetor! The 1987-90 YJ 4.2L inline six cylinder engine carries forth the late CJ-era carburetion and induction system. This is a feedback BBD Carter 2-barrel carburetor that works with an MCU (micro-computer unit) and a series of engine sensors. A closed loop design, this is the last […]

Moses Ludel’s 4WD Mechanix Magazine – Rebuilding the YJ Wrangler 4.2L BBD Carburetor

Moses Ludel’s 4WD Mechanix Magazine – Rebuilding the YJ Wrangler 4.2L BBD Carburetor

How-to: YJ Wrangler 4.2L Six Two-Barrel ‘BBD’ Carburetor Rebuild! The 1987-90 YJ 4.2L inline six cylinder engine carries forth the late CJ-era carburetion and induction system. This is a feedback BBD Carter 2-barrel carburetor that works with an MCU (micro-computer unit) and a series of engine sensors. A closed loop design, this is the last […]

Moses Ludel’s 4WD Mechanix Magazine – Moses Ludel Rebuilds the Jeep YJ Wrangler Dana 30 Front Axle

Moses Ludel’s 4WD Mechanix Magazine – Moses Ludel Rebuilds the Jeep YJ Wrangler Dana 30 Front Axle

Rebuilding Jeep YJ Wrangler Dana 30 Front Axle with ARB Air Locker!   Note: The popular Dana 30 open knuckle front axle is original equipment in various Jeep, Bronco and I-H Scout 4×4 models. High and low pinion designs distinguish these applications. The Jeep YJ Wrangler and most XJ Cherokee models use the high-pinion or “reverse rotation” ring […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Routine Service & Miscellaneous Q & A

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Routine Service & Miscellaneous Q & A

Q&A: YJ and TJ Wrangler Routine and Miscellaneous Service      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and metal […]

Moses Ludel’s 4WD Mechanix Magazine – Tuning and Troubleshooting the 2.5L Jeep TBI Four

Moses Ludel’s 4WD Mechanix Magazine – Tuning and Troubleshooting the 2.5L Jeep TBI Four

How-to: Tuning & Troubleshooting Jeep 2.5L TBI Four-Cylinder Engines In 1986, the AMC 2.5L/150 four cylinder engine gained throttle body injection in the XJ Cherokee applications. This same engine in the Jeep CJ models still used a carburetor. The YJ Wrangler application of the 2.5L, introduced with the 1987 models, came with TBI, making this […]

Moses Ludel’s 4WD Mechanix Magazine – Identifying Jeep Wrangler Manual Transmissions and Clutches

Moses Ludel’s 4WD Mechanix Magazine – Identifying Jeep Wrangler Manual Transmissions and Clutches

      Jeep YJ and TJ Wrangler Manual Transmissions and Clutch Types     The YJ and TJ Wrangler manual transmission and clutch systems are similar and easy to identify. By the late YJ Wrangler era (1993-95), the transmission and clutch platform for YJ models took an identical form to the TJ Wrangler models that followed in […]

Moses Ludel’s 4WD Mechanix Magazine – Moses Ludel: Publisher Profile

Moses Ludel’s 4WD Mechanix Magazine – Moses Ludel: Publisher Profile

Moses Ludel, Publisher & Editor of 4WD Mechanix© Magazine         Moses Ludel’s professional writing and photography career began in 1982. A magazine journalist and newspaper writer, photographer, columnist and industry consultant, Moses Ludel is the mechanic, author and illustrator of the bestselling Jeep® Owner’s Bible, the Jeep® CJ Rebuilder’s Manual: 1946-71 and the Jeep® CJ Rebuilder’s Manual: 1972-86. The Jeep® Owner’s Bible™ (published by Bentley Publishers), […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep Engine Tuning, Diagnostics and Troubleshooting

Moses Ludel’s 4WD Mechanix Magazine – Jeep Engine Tuning, Diagnostics and Troubleshooting

How-to: Jeep Engine Tuning and Troubleshooting     Rapid advances in engine fuel-and-spark management span the modern Jeep era. In 1987, the YJ Wrangler 2.5L four became the first Jeep 4×4 utility model with fuel injection. The 2.5L throttle body injected (TBI) engine was a Cherokee offering as well.      Simultaneously, the 1987-90 YJ Wranglers with 4.2L sixes […]