How-to: 1990-2006 Jeep Disc Brake Pads and Rotors Service

1990-2006 Jeep Front Brakes Service and Pad Replacement… This HD video is the trailer for a full-length 24:49-minute brake service video, part of a how-to series available at Vimeo On Demand.  In the front disc brake segment, Moses Ludel shares the replacement of brake pads, rotors and related parts on these Jeep models: 1990-95 Jeep […]

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 […]

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” […]

Jeep Q&A: Willys, CJ and Jeepster Engine Upgrades and Swaps

Jeep Q&A: Willys, CJ and Jeepster Engine Upgrades and Swaps

Q&A: Willys, Jeep CJ & Jeepster Engine Upgrades and Swaps 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 […]

Jeep Q&A: Willys, CJ and Jeepster Tires, Suspension, Steering and Brakes

Jeep Q&A: Willys, CJ and Jeepster Tires, Suspension, Steering and Brakes

Q&A: Willys, CJ & Jeepster Tires, Suspension, Steering and Brakes 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 […]

Q&A: Willys, CJ and Jeepster Axle, Transmission, Transfer Case and Driveline

Q&A: Willys, CJ and Jeepster Axle, Transmission, Transfer Case and Driveline

Q&A: Willys, Jeep CJ, Jeepster Axle, Transmission and Transfer Case 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 […]

Routine Service for Late Jeep 4WD Models

Routine Service for Late Jeep 4WD Models

Jeep 4WD How-to: Late Model Preventive Maintenance and Routine Service Jeep 4WD owners continue to access rugged and challenging trails! Here, Warn’s modified late JK Wrangler Rubicon 4-door boasts a complement of aftermarket accessories. Plying the rocks at Moab, Utah, this Jeep JK Wrangler 4WD demands preventive maintenance and punctual routine service! The Jeep XJ […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Engine Upgrades and Swaps

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Engine Upgrades and Swaps

Q&A How-to: Jeep YJ or TJ Wrangler Engine Upgrades and Swaps      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 […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Tire, Suspension, Steering and Brakes

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Tire, Suspension, Steering and Brakes

Q&A How-to: Jeep YJ & TJ Wrangler Tire, Suspension, Steering & Brakes      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 […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Oil Filtration for 4.0L and Stroker Inline Six Build-ups

Moses Ludel’s 4WD Mechanix Magazine – How-to: Oil Filtration for 4.0L and Stroker Inline Six Build-ups

Oil Filtration for Jeep 4.2L, 4.0L and Inline Six Stroker Motors The 4.0L swap into an earlier Jeep CJ or YJ Wrangler 2.5L four or 4.2L inline six chassis has become popular. So is the stroker build-up that uses the 4.0L inline six engine block.      Jeep 4.0L and stroker inline six buildups have become popular. 4.0L conversions […]

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 Multi-Point Injection: Operation and Troubleshooting

Moses Ludel’s 4WD Mechanix Magazine – Jeep Multi-Point Injection: Operation and Troubleshooting

How-to: Troubleshooting Jeep Fuel Injected MPI Engines Overview: Jeep ‘PCM’ and Multi-Point Fuel Injection Systems      AMC electronic fuel injection for Jeep engines dates to 1987. From 1987-90, the 4.0L XJ Cherokee benefited from multi-point fuel injection. This reliable Renix system could easily have been adapted to the 4.2L six, a move that would likely have earned […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Winter Oil and Filter Change

Moses Ludel’s 4WD Mechanix Magazine – How-to: Winter Oil and Filter Change

Jeep 4WD How-to: Winter Engine Oil Change with a New Mopar Oil Filter!      Oil and filter changes are a critical part of Jeep maintenance. Whether your Jeep is new or has high mileage, premium oil and regular filter changes protect your investment. Use of genuine Mopar filters will extend your Jeep’s service life and increase reliability. […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep Emission Control Troubleshooting

Moses Ludel’s 4WD Mechanix Magazine – Jeep Emission Control Troubleshooting

Jeep How-to: Tailpipe Emission Controls and Troubleshooting      Note: The PCM is responsible for a number of emissions and evaporative canister functions. As a monitor, the PCM protects the catalytic converter from overheat or damage by watching for engine misfire. Uniquely, the PCM knows when the engine misfires by sensing subtle changes in crankshaft rpm. A […]

Moses Ludel’s 4WD Mechanix Magazine – NP231 and NV231 Jeep Wrangler Transfer Case Rebuild: Part 1

Moses Ludel’s 4WD Mechanix Magazine – NP231 and NV231 Jeep Wrangler Transfer Case Rebuild: Part 1

How-to, Part 1: Disassembly & Inspection of NP/NV 231 Transfer Case 1: The New Process/New Venture type 231 transfer case is identified by its distinct I.D. plate. The 231 is popular on the Jeep YJ Wrangler, Jeep TJ Wrangler, the Jeep XJ Cherokee and some Jeep Grand Cherokee models. Read the plate carefully for details […]

Moses Ludel’s 4WD Mechanix Magazine – Moses Ludel Installs Jeep TJ Wrangler Lift Kit

Moses Ludel’s 4WD Mechanix Magazine – Moses Ludel Installs Jeep TJ Wrangler Lift Kit

How-To: Installing Full-Traction Suspension’s TJ Wrangler Lift Kit!      For many Jeep owners, this TJ Wrangler Rubicon edition offers plenty of ground clearance with its factory 31″ diameter tires. Hardcore trail runners prefer even larger tires these days! 33-35-inch diameter is the choice, and in this article, I share my shop and step-by-step photos of what […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Jeep Cherokee Power Window and Door Lock Switch Replacement

Moses Ludel’s 4WD Mechanix Magazine – How-to: Jeep Cherokee Power Window and Door Lock Switch Replacement

  How-to: Jeep Cherokee Power Window and Door Lock Switch Replacement      Whether it’s the legendary longevity of a Jeep XJ Cherokee or just the nature of manual electric switches, the power window and door lock switches do wear out over time. The troubleshooting will be easier with a factory workshop manual for your Jeep XJ Cherokee.  At left is […]

Moses Ludel’s 4WD Mechanix Magazine – Illustrated Technical Articles and How-to

Moses Ludel’s 4WD Mechanix Magazine – Illustrated Technical Articles and How-to

4WD Mechanix Magazine Illustrated Technical Articles! Illustrated Articles —Sections Available 1—4WD Mechanix Jeep 4×4 2—4WD Mechanix 4×4 Truck and SUV 3—4WD Mechanix Dirt & Dual-Sport Motorcycle 4—The Automatic Transmission Workshop 5—Welding & Brazing How-to 6—Outdoor Lifestyle & Travel Columns    For additional discussion, get involved at the 4WD Mechanix ‘Tech & Travel’ Forums!  These forums have […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Installing a Random Technology High Performance Catalytic Converter

Moses Ludel’s 4WD Mechanix Magazine – How-to: Installing a Random Technology High Performance Catalytic Converter

Random Technology Catalytic Convert Improves Jeep 4.0L Performance!      Since 1975, American passenger cars and light-duty trucks have required a catalytic converter. With the exception of some J20 and J30 Jeep trucks, all 1975-up Jeep 4WD models have a ‘cat’ system. When a Jeep goes for emission inspection, a target item on the check list is the cat.      The cat’s purpose […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Trailside Air Filter Service

Moses Ludel’s 4WD Mechanix Magazine – How-to: Trailside Air Filter Service

Jeep 4WD How-to: Replacing a Clogged Air Filter Along the Trail!      A common Jeep 4WD maintenance question is when to change the engine air filter. On-highway, under optimal conditions, an air filter element can last for thousands of miles. By contrast, mere hours of alkaline dirt road exposure will clog an air filter to the point of […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Fuel-and-Spark Modifications for the Jeep 4.6L Stroker Inline Six

Moses Ludel’s 4WD Mechanix Magazine – How-to: Fuel-and-Spark Modifications for the Jeep 4.6L Stroker Inline Six

Fuel and Spark Needs for Jeep 4.6L Inline Six Stroker Motors! The 4.0L inline six with a hybrid 4.2L crankshaft has become popular—and practical as well! The ease with which this engine can be built makes the “stroker motor” a must for Jeep owners facing an engine rebuild. Jeep’s relationship with the 4.2L/258 and 4.0L inline six-cylinder […]

Moses Ludel’s 4WD Mechanix Magazine – Articles: Jeep How-to & Upgrades

Moses Ludel’s 4WD Mechanix Magazine – Articles: Jeep How-to & Upgrades

  You Can Perform Jeep 4WD Technical How-to & Upgrades!    Along that remote trail, with limited parts availability and your rolling tool chests miles away at the shop or home garage, you need mechanical savvy and troubleshooting skills! I have driven solo over rugged trails for more than four decades. Getting a 4×4 home from remote desert and rugged […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ Cherokee & MJ Comanche 4WD Workshop

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ Cherokee & MJ Comanche 4WD Workshop

Jeep 4WD How-to: XJ Cherokee & MJ Comanche Workshop     With 2.8-million XJs built from 1984-2001, the used market is plentiful—and pre-owned models are cheaper (per capita) than any other used Jeep 4×4 in history! Featuring a virtually bulletproof powertrain, with axles similar to the rugged YJ Wrangler’s units, the lightweight XJ Cherokee and […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Jeep 4.0L Water Pump and Serpentine Belt

How-to: Jeep 4.0L/4.2L Inline Six Water Pump, Serpentine Belt and Radiator R&R! In this HD video how-to, Moses Ludel removes and installs a water pump in a 1987-2001 Jeep XJ Cherokee 4.0L engine.  The basic steps in this water pump replacement carry over to other 4.0L Jeep inline sixes, including the 1991-95 YJ Wranglers and the 1997-2006 Jeep TJ Wranglers.  Jeep […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep Trail Troubleshooting & Repairs

Moses Ludel’s 4WD Mechanix Magazine – Jeep Trail Troubleshooting & Repairs

Jeep Technical How-to: Troubleshooting & Trailside Repairs!      The mark of a topnotch Jeep mechanic is his or her troubleshooting ability. After all, these vehicles are likely to be in a compromising environment when trouble occurs! See detailed ‘how-to’ coverage on the following sub-pages.   If this magazine has anything to do with it,you […]