OER Parts offers a wide selection of Manual Transmissions & Parts for your 1988 GMC R1500 Suburban. OER Parts offers 1988 GMC R1500 Suburban Bearings, 1988 GMC R1500 Suburban Boots, 1988 GMC R1500 Suburban Complete Transmissions, 1988 GMC R1500 Suburban Flywheel, 1988 GMC R1500 Suburban Gaskets, Seals & Filters, 1988 GMC R1500 Suburban Gears, 1988 GMC R1500 Suburban Hardware, 1988 GMC R1500 Suburban Shift Knobs, 1988 GMC R1500 Suburban Shift Linkage, 1988 GMC R1500 Suburban OE Shifters, and 1988 GMC R1500 Suburban Performance Shifters.