Lockers are expensive and open diffs suck-a-duck off-road, so for chump-cheap traction, it’s hard to beat the age-old method of simply welding up your differential spider gears to create a mini spool.

Dropping a big dyno number is good for the ego but on the street you need to get all that power to the ground to confirm your cred. Suspension mods address the angle and firmness of the contact patch ...