From the shop floor.

All-Terrain vs. Mud-Terrain Tires: Which One You Actually Need

For about nine out of ten builds the answer is all-terrain — modern A/Ts give up very little on rock, dirt and sand, run 45,000–65,000 miles against 35,000–45,000 for an M/T, cost $50–$100 less per tire, and usually carry the 3PMSF snow rating mud-terrains do not. The four situations where an M/T genuinely earns its keep, what it costs you the other 360 days (noise, wet braking, ~1 MPG, rotating mass), where hybrids fit — and the four things that move traction more than the tread pattern does.

4Runner Re-Gear for 35s: What Ratio, What It Costs

On a 5th gen 4Runner running 35s, 4.88 is the ratio for most builds — stock 3.727 gears with a 35″ tire behave like 3.37, a 10% loss before you add a single pound of armor. 4.56 only if the rig is light and mostly on pavement; 4.10 and 4.30 just buy back a compromise. Full ratio math, 2026 costs ($1,600–$2,600 for both ends), the carrier break and factory-locker traps, break-in fluid schedule — and the speedometer error that re-gearing does not fix.

JK Front Track Bar: Drop Bracket or Adjustable Bar?

Under about 3″ of lift, buy the adjustable track bar and skip the drop bracket — centering the axle is the only problem a lift that size creates. At roughly 4″ and up the answer flips: you need a relocation bracket and a drag link flip or drop pitman arm, installed together, because one without the other makes the geometry worse. Costs ($150–$250 for a bar, $300–$500 for the bracket pair), torque specs, install order — and the wallowed frame-side bolt hole that makes both upgrades useless until it’s fixed.

How to Torque Lug Nuts (and Why the Sequence Matters)

Star pattern, two passes, torque wrench, dry threads, final pass with the tire on the ground, re-check at 50–100 miles. Tightening in a circle pulls the wheel onto the hub crooked — that’s how rotors get distorted and how wheels come loose. Specs for every platform we cover, from 83 lb-ft on a Tacoma to 150 on a Raptor, plus why the impact gun never gets the last word and why oiled threads over-stretch studs at the “correct” reading.

Is the Bronco Sasquatch Package Worth It? The Honest Math

If you intend to run 35s, buy it from the factory — the 4.70 gears, front electronic locker and Dana M210 front axle cost more to add later than the package costs new. Roughly $4,180–$8,460 depending on trim against $9,700–$18,000 to replicate in the aftermarket. If the truck mostly sees pavement, skip it: you pay the fuel economy, noise and steering-effort penalty every mile. Plus the 37-inch question and how to verify a used Sasquatch is real.

What Axle Do I Have? Identify It in Five Minutes Without Pulling the Cover

The differential cover is the answer. A Dana 30 is a rounded square, ~9″ wide, front-only on a Jeep. A Dana 35 is a smooth oval with a snap-in plastic fill plug. A Chrysler 8.25 looks identical until you find the 3–4″ flat section across the bottom. A Dana 44 is an irregular hexagon with a steel screw-in plug. Plus decoding Dana BOM tags, the JL/JT M186–M220 metric names, Bronco and Toyota axle splits, and how to measure your gear ratio with chalk and a tape measure.

XJ Thermostat Replacement: 195°F or 180°F, and How to Do It Right

Run the 195°F thermostat — it’s the factory spec for the 4.0 and 2.5, and a 180 fixes nothing. A thermostat sets the minimum operating temperature, not the maximum: once coolant is past the rating it’s fully open, and the radiator, fan clutch, and water pump own the outcome. The part runs $8–$20, the job is two bolts and about an hour, and the housing torques to 15 ft-lb (20 N·m) — overtightening those bolts is the most common reason a housing leaks afterward.

XJ Sway Bar Disconnects: When They Help, When They Don’t

Pulling the front sway bar frees the XJ’s coil-sprung front axle to flex up to ~30% more, keeping tires planted where a connected bar lifts them. Quick disconnects are worth it for one specific truck: the XJ that drives to the trail and wheels regularly — they turn the swap into a 60-second pin pull. Street-only rigs should skip them, trail-only rigs can unbolt the factory links for free. And the hard rule either way: reconnect before pavement, every time.

XJ Rear Axle Fluid Change: Which Oil, How Much, and How Often

An hour in the driveway and under thirty dollars in fluid — and one of the highest-payback services on the truck. Most XJs run a Chrysler 8.25 (4.4 pt / ~2.1 qt); ABS-era trucks got the Dana 35 (3.5 pt). Fill with 75W-90 GL-5, step up to 75W-140 if you tow, and add 4 oz of friction modifier for a Trac-Lok. There’s no drain plug — you pull the cover and reseal with RTV. Change it every 30,000 miles, and immediately after any water crossing.

XJ Fuel Pump Failure: Symptoms, How to Diagnose It, and What Replacement Costs

Long hot-start cranks, a sputter under load on the highway, a whine from the tank, then a no-start that cranks but won’t fire — the in-tank pump rarely dies all at once. Before you drop the tank, confirm it with three cheap checks: the key-on prime, a relay swap, and a rail pressure reading (31 psi on 91–95, ~49 on 97–01). Plus how to tell a weak pump from a bad relay or crank sensor.

XJ Control Arm Bushings: Symptoms, and Whether to Replace the Bushing or the Whole Arm

A squeak that turns into a clunk over bumps, a wander, a pull under braking — worn control arm bushings let the axle move around under the truck and feed death wobble. Why replacing the whole stamped arm usually beats pressing bushings, why rubber wins over poly here, and the one step (torque at ride height) that decides how long the job lasts.

XJ Steering Box Adjustment: How to Take Up On-Center Play (and When Not To)

The XJ’s Saginaw gear has an over-center adjuster on top that takes up on-center slop — but it’s the last thing to touch, not the first. How to confirm the play is really in the box, turn the adjuster in quarter-turn steps without binding it, and know when a worn box just needs replacing.

JK Wrangler Oil Leaks: Where They Come From and Which Ones Matter

Oil under the Jeep or a burning smell after a drive? On a 3.6 Pentastar it’s almost always the plastic oil filter housing; on a 3.8 it’s usually the upper oil pan gasket masquerading as a rear main. How to trace the real source, tell a leak that matters from a harmless weep, and what each fix costs.

XJ 4.0 Head Gasket Failure: Signs, the 0331 Crack, and What It Really Costs

Coolant vanishing with no puddle, milky oil, or sweet steam from the tailpipe on a 4.0 usually means a failed head gasket — or, on 2000–2001 XJs, a cracked 0331 head. How to read the signs, confirm which one you have with a block test, and what the fix actually costs before you buy a single part.

JK Bump Steer After a Lift: What Causes It and How to Fix It

Lifted the Jeep and now the front end darts over every bump? That’s bump steer — a geometry side effect of the lift, not a worn part. The track bar and drag link are no longer parallel, so the axle steers itself. Why it happens, how it differs from death wobble, and the right fix for your lift height (and the one mistake that creates it).

XJ 4.0 Oil Leaks: Where They Come From and Which Ones Matter

The two most common 4.0 leaks are the valve cover gasket and the oil filter adapter o-rings — both cheap, both an afternoon’s work. The rear main seal gets blamed most and is the least likely, because it catches drips from everything above it. How to find the real source before you buy a gasket.

Do You Need a Slip Yoke Eliminator? The Lift Threshold (and Why a JK Doesn't Need One)

You need an SYE when a lift raises the rear driveshaft angle enough to cause vibration the slip yoke can't absorb — on an NP231 Jeep (XJ, YJ, TJ, ZJ) that's about 3–4". Fixed-yoke Jeeps (every JK and JL, plus the TJ/LJ Rubicon) don't need one. The thresholds, the costs, SYE vs. hack-n-tap, and why you need a CV driveshaft too.

XJ AW4 Transmission Maintenance: Fluid, Filter, and Why You Don't Flush It

Service the AW4 with a drain-and-fill of Dexron III/Mercon ATF, not a high-pressure flush. Drop the pan, clean the screen and magnet, refill 3–4 quarts — every 30k miles, or 15k if you wheel or tow. Here's the right fluid, the real interval, and why heat is what kills an AW4.

What Size Tires Fit Your XJ? Lift Height to Tire Size, Decoded

With factory flares: 2" clears 30s, 3" clears 31s, 4.5" clears 32s, 6.5" clears 33s — trim the fenders and each step goes up a size. Here's the full chart, why backspacing matters as much as lift, and when you have to re-gear.

XJ Rust Inspection: What's Fixable and What's a Walk-Away

The XJ is a unibody, so the frame rails are the body — rot near a spring mount is structural and ends the deal. Floor pans, rockers, and quarters are fixable. Here's where to look and how to tell the difference before you buy.

Your XJ Is Overheating: The Diagnosis Sequence, In Order

Six causes explain nearly every overheating 4.0L XJ — and the first four are cheap to test. Coolant and cap, thermostat, fan clutch, e-fan, radiator, water pump: here's the test for each, in the order that finds the fault without throwing parts at it.

Toyota Tacoma: The Complete Trail Manual Overview

The resale-proof mid-size truck that built the modern overland scene. Here's what each generation actually is, which engines and trims matter, the frame-rust history every buyer needs to know, and who should build one.

Buying a Used Toyota Tacoma: What to Inspect Before You Pay

The frame decides whether a used Tacoma is a steal or scrap. Here's exactly what to inspect by generation, which engines and transmissions to trust, what each problem costs, and what a clean truck should run in 2026.

Lifting a Toyota Tacoma: Coilovers, Leaf Packs, and What Each Lift Actually Clears

A coilover up front, leaf springs out back — the Tacoma's split suspension is where most lift regret comes from. Here's how to read your truck, why cheap rear blocks cause axle wrap, and what each path actually costs.

Jeep 4.0 Crank Position Sensor: Symptoms, the Hot-Start Test, and the Fix

Runs fine cold, stalls hot, won't restart until it cools? That heat-soak no-start is the classic failing crank sensor — not the engine. Here's how to confirm it and which part to buy.

Jeep 4.0 Cracked Exhaust Manifold: Symptoms, the Real Fix, and What It Costs

A tick that's loudest on a cold start and fades as it warms is the classic cracked 4.0 manifold. Here's why welding rarely holds, and the flex-jointed replacement that does.

Your XJ Oil Pressure Gauge Is Bouncing or Dropping — Here's How to Tell If It's Serious

On a 4.0L, an erratic needle with a smooth-running engine is almost always the sending unit or its wire — not the engine. Here's the diagnostic order and the $0 test that settles it.

Jeep Gladiator JT: The Complete Trail Manual Overview

The only mid-size truck with a removable top, doors, and a real solid-axle trail pedigree. Here's what makes the JT distinctive, where it compromises, and who should actually build one.

Buying a Used Jeep Gladiator JT: What to Inspect Before You Pay

A used JT can be a great buy or an expensive lesson. Here's exactly what to check, which years and trims hold up, what the known problems cost, and what you should pay by year and mileage.

Jeep Gladiator JT Lift Kit: Everything You Need to Know

A 2.5-inch coil lift on 35s is the sweet spot. Here's the fitment map, the supporting parts that actually matter, why the coil-sprung rear and long wheelbase change the math, and when to re-gear.

How to Lift a TJ Wrangler: Springs, Caster, and What You Need Before Tires

A 3–3.5-inch short-arm lift fits 33×12.5-inch tires without a body lift and keeps the NP231 slip yoke in a safe operating range. Here's the tier breakdown, why caster correction isn't optional, and when you actually need an SYE.

XJ Ball Joint Replacement: Symptoms, Diagnosis, and DIY

A clunk from a front corner over bumps is the tell. Here's how to test for play, what to buy (Spicer 706944X), and how to press them yourself with a rented tool.

JK Death Wobble: How to Diagnose It and Fix It for Good

The factory track bar bolt is undersized by design — it's the root cause for most JKs. Here's the diagnosis sequence and the fix that actually holds, including what lifted rigs need to do differently.

Blown Head Gasket or Cracked 0331 Head? How to Tell on a 4.0L XJ

Slow coolant loss with no overheating points to a cracked 0331 head, not a gasket. Here's the diagnostic order that separates them without pulling the head.

How to Cut XJ Fenders to Fit 35-Inch Tires: The Notch and Fold Method

Lift alone won't get 35s under an XJ. Here's the full front and rear fender cut process — notch and fold on the rear quarters, what to seal, and flare options after.

XJ Death Wobble: Causes, Diagnosis, and the Fix That Actually Works

It's almost always the track bar bracket bolt or a worn track bar. Here's how to confirm it and fix it before it damages your steering box.

XJ Cooling System Failures: What Breaks, When, and What to Do

The factory radiator is the most common failure. Here's the full list — radiator, water pump, thermostat, hoses — in order of likelihood.

Buying a Used Jeep Wrangler JK: What to Inspect Before You Pay

JK Wrangler Lift Kits: What Size, What Kit, and What It'll Really Cost

The Jeep Wrangler JK: What Makes It Worth Building and What It'll Cost You

JL Wrangler Lift Kit Guide: Heights, Kits, and What the JL Actually Needs

Buying a Used Jeep Wrangler JL: What to Inspect Before You Pay

Jeep Wrangler JL: What Makes It Different, Who It's For, and What to Know Before You Build

Toyota 4Runner: Why It Survives, What to Watch For, and Whether It's the Right Used Buy

Buying a used Power Wagon: what to inspect, what to walk away from, what to pay.

The Power Wagon has been on sale in its modern form since 2005 and has had three significant generations. Each has known issues. Here's what

Power Wagon lift options: from $90 to $24,000, and what each gets you.

The Power Wagon's IFS front suspension is more constrained than a solid-axle Jeep, but the factory Articulink sway-bar disconnect already gi

The Ram Power Wagon is the only factory truck with both lockers.

It's not the fastest, it's not the most refined, and it's not the cheapest. But for the specific job of going somewhere harder than the road

Buying a Used TJ Wrangler: What to Inspect Before You Pay

The Jeep TJ Wrangler: What Makes It Special and Who Should Build One

When to Re-Gear Your Axles: The Math, the Feel, and When to Leave It Alone

The XJ Dana 35: When to Keep It, When to Swap It, and What to Replace It With

How to Lift a Cherokee XJ: The Right Setup, in the Right Order