1991 Metric or SAE Oil Filter Thread?
I'm finally getting around to doing the tuneup on my wrangler. I'm finding in speaking with both Autozone and Advanced that the 1991 had both an SAE and Metric Oil Filter option. I don't know which one I need. Any way of telling without pulling the existing filter and matching it up?
Denis A. Baldwin
1991 YJ 2.5L, 1" BD MML, Ultimate 8.8, Super D30, 4.88 Gears, Detroit Lockers, 36" Super Swamper SAM-26s on Ion 171s, RE SOA w/RE1445 springs, Bilstein 5150s, 3in. BL, custom cage, Warn M8000, Double D Dash/OHC, 4Low Front Stinger Bumper, DirtWorx Rear Bumper WTC, Tube Fenders, RR OTT Steering and PAID FOR.