Modifications I've made to my '98 Grand Cherokee 5.9 Limited
June 4, 2018
Modifications I've made to my '98 Grand Cherokee 5.9 Limited: By: Scott Mueller Performance Mods: -Mopar Performance PCM p/n P4876898 ('98 Federal Emissions) -Extrude Honed/Jet Hot coated exhaust manifolds -Jet Hot coated Y-pipe -Jet Hot coated "off-road" (cat delete) pipe -Casper's downstream O2 sensor simulator -180 degree thermostat -DexCool long life coolant -25% under drive steel crank pulley, shorter belt -Fastman 50mm ported factory throttle body -Don-a-Vee 5/8" throttle body inlet spacer, Jet Hot coated -K&N air filter w/drilled lower air box -UpCountry suspension springs and jounce bumper spacers -Addco front/rear swaybars (larger diameter than stock) -Energy Suspension greasable swaybar bushings -Air Lift bags in the rear springs (for level adjustment while towing) -Sachs UpCountry shocks -Synthetic fluids (engine, xfer case, trans, fr and rr diff) -Factory auxiliary transmission cooler -Power steering cooler (using factory 6cyl trans cooler) -Aluminum finned front diff. cover (holds more fluid, better cooling) Accessory/Appearance Mods: -Factory export E-code headlamps (far superior to US headlamps) -Narva 90/100w H4 headlight bulbs -Painless Wiring headlight harness w/dual Bosch 40-amp relays -Modified fog lights to operate with high beam headlights -Dichroic (coated) 55w yellow H3 fog light bulbs -Converted front turn signals to dual filament (running light) operation -Brighter (higher output) tail, backup and side marker bulbs -Tekonsha trailer brake controller (connected to factory trailer wiring) -Polyurethane clear coated undercarriage (corrosion protection) -Harada FM antenna preamp (pulls in more stations, better stereo) -Painted 5.9 grille inserts semi gloss black -Chrome front tow hooks (Reese) on factory brackets Email me (address above) if you have any questions about any of these mods. Scott.