Towing & Payload
Midsize SUV Towing Capacity Chart 2026: Updated Ratings
Midsize SUV towing capacity chart: official max ratings for 12 SUVs, from the 6,200 lb Grand Cherokee to 5,000 lb rivals, plus the trims rated lower.
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Towing & Payload
Ram 2500 Towing Capacity Chart 2026: Official Ratings
Ram 2500 towing capacity chart for 2026: every HEMI and Cummins rating by axle, cab, bed and drive, up to 20,000 lb, from Ram's official chart.
Tire-Wheel
Speed Rating on Tires Chart 2026: Complete Letter Guide
Speed rating on tires chart: every letter from L to (Y) in mph and km/h, from UNECE R30 and USTMA, plus ZR markings and replacement rules.
Parts Cross-Reference
Spark Plug Gap: Where to Find the Spec for Your Engine
Pre-gapped means set at the factory, not for your engine. Where the gap spec lives, which source wins, and when to stop.
Tire-Wheel
15 Inch Tire Size Chart 2026: Complete Diameter Guide
15 inch tire size chart: diameter, width, sidewall and revs per mile for 18 sizes, checked against Continental specs, plus how to compare sizes.
Paint
Color Chart 2023 Jeep Wrangler Colors: Complete 2026 Guide
Color chart of all 12 2023 Jeep Wrangler colors with paint codes, from Jeep's own releases: Earl, Reign, Punk'n, prices and how to match paint.
Battery Charts
Harley Davidson Battery Size Chart 2026: Complete Guide
Harley-Davidson battery size chart: H-D AGM part numbers by model, Yuasa sizes and CCA, plus H-D charging, voltage and torque specs.
Parts Cross-Reference
How to Read a Spark Plug Part Number: What Must Match
A plug code is a private key, not a universal one. What heat range, reach and seat type mean, why brands do not translate, and where your engine's spec is.
Battery Charts
Car Battery Group Size Chart 2026: Complete BCI Guide
Car battery group size chart from BCI data: max dimensions, terminals and CCA ranges for 90 groups, plus H6/LN3 and JIS cross references.
Towing & Payload
Toyota Tundra Towing Capacity Chart 2026: Complete Guide
2026 Toyota Tundra towing capacity for every trim, cab, bed and drive from Toyota.com: 8,300 to 12,000 lb, plus payload, GCWR and how to find your exact rating.
Parts Cross-Reference
Brake Pad Fitment: Two Options for the Same Car Explained
Two pad sets listed for one car usually means two brake packages. How to tell which you have, and where the job belongs to a shop.
Tire-Wheel
Trailer Tire Speed Rating Chart 2026: Complete ST Guide
ST trailer tire speed ratings explained: no symbol = 65 mph, L, M and N letters, the 10 psi rule above 65 mph, and real examples from Goodyear and Carlstar.