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1. #YELLA TERRA ROCKERS JEEP 2.5 INSTALL#
2. #YELLA TERRA ROCKERS JEEP 2.5 DRIVER#

The four-banger is probably a joke if you live in mountainous areas and wanted to use it as a daily driver or if you like to blast over huge dunes.

The advantage the YJ has over earlier Jeep models is that almost everything could be bolt-on. Excessive rotating weight is a performance killer. Nothing particularly special here but lightweight is key since the four-banger isn’t exactly overflowing with torque. The 35s would be mounted to lightweight 15x8 aluminum wheels with bead locks.

We’d run lightweight 35-inch mud tires with an aggressive tread pattern and strong sidewalls. Everything else would remain mostly stock, including the A/C and heater for all-weather ’wheeling. The rear seat would be removed and replaced with a spare tire mounted to the floor. 120-wall DOM tubing in the main bars, mount it to the frame, and incorporate seat mounts bolted to comfy low-back buckets. We’d remove the factory rollbar and build a complete cage using 1 ¾-inch. The front inner fenders would be removed for the same reason and the fenders and hood would be replaced with fiberglass, preferably a one-piece unit. We’d run complete soft doors and a soft top for weight savings. The factory tub stays but would receive a set of rocker guards, a 1- or 2-inch body lift, and some fender trimming to help clear the 35-inch tires. Then we’d be down to 217:1, which is probably too low.

#YELLA TERRA ROCKERS JEEP 2.5 INSTALL#

It isn’t quite as low as we would like but we’d make due or move the engine forward 6-8 inches and install a Klune-V with a 2.72:1 ratio. This combo would provide a crawl ratio of about 80:1. The original AX5 would stay but the 231 would get swapped in favor of an Atlas II with the 4.3:1 low-range gears. We’d keep the 2.5L, install headers, a complete exhaust system, and an open-element air filter. In the rear we’d find the softest 3 ½-inch springs and mount them up with boomerang shackles. We’d keep the suspension simple and find front 2 ½-inch lift springs with the lightest spring rate available and hang them off of a shackle-reversal kit that provides about 1½ inches of lift. Out back we’d throw in a high-pinion Dana 44 with 4.88s, a locker, and 33-spline axles from Drivetrain Direct. The XJ axle is lighter, less complex, and has the same compact but strong ring-and-pinion as the YJ Dana 30. We’d replace the disconnect Dana 30 front axle with an XJ high-pinion Dana 30 and stuff it with 4.88 gears, 297-jointed alloy axles, and a locker. The Wrangler frames are pretty strong as is. Maintains lash and reduces necessary and tedious engine maintenance.We would keep the frame stock but run a high-clearance skidplate.