July 2020-GritHound’s 1990 Build Thread: 1990 Time Machine – YEAR/MODEL – 1990 Jeep Comanche Pioneer DRIVETRAIN – Renix 4.0 /AW4/ NP231/ Dana 30/Dana 35 Auto 4x4 SWB POSI Lock added Mopar Fuel Injectors Harmonic Balancer and serpentine belt replaced Full Exhaust system replacement New Lifters and valve seals New Fel-pro gaskets Machined eng
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