M5R M/T 3RD & 4TH Synchro Assembly & Mazda F150 . M5R2 Manual Transmission 1988-1998 Ford F-150 and Mazda 3rd & 4th Gear Synchro Assembly Keys and Springs not included 0.32 inch Wide Fork Slot Features and Benefits: M5R2 Manual Transmission 1988-1998 Ford F-150 and Mazda 3rd & 4th Gear Synchro Assembly Keys and Springs not included 0.32 inch Wide Fork Slot Details: AAP UDA 4: 55 Grade Type: Regular Application Summary: 1988-1996 Ford Bronco (Transmission Code: M5R2, R2 & Transmission Base Gear: 5 & Transmission Control Type: Manual / Note: M5R2 Manual Transmission, 3rd-4th Synchro Assembly, 0.320 inch Wide Fork Slot, Does Not Include Keys, Springs, Or Synchro Rings) 1988-1989 Ford E-150 Econoline (Transmission Code: M5R2 & Transmission Base Gear: 5 & Transmission Control Type: Manual / Note: M5R2 Manual Transmission, 3rd-4th Synchro Assembly, 0.320 inch Wide Fork Slot, Does Not Include Keys, Springs, Or Synchro Rings) 1988-1998 Ford F-150 (Liter: 4.2, 4.6, 5.4 & Engine(ci): 256, 281, 330 & Cylinder: 6, 8 & Block: V & Bore(in): 3.81, 3.55 & Bore(mm): 96.8, 90.2 & Stroke(in): 3.74, 3.54, 4.17 & Stroke(mm): 95.0, 90.0, 105.7 & Transmission Code: M5R2, R2, M50D & Transmission Base Gear: 5 & Transmission Control Type: Manual & Drive: 4WD, Rwd / Note: M5R2 Manual Transmission, 3rd-4th Synchro Assembly, 0.320 inch Wide Fork Slot, Does Not Include Keys, Springs, Or Synchro Rings) 1988-1998 Ford F-250 (Liter: 4.9, 5.8, 4.6, 5.4 & Engine(cc): 4917, 5753 & Engine(ci): 300, 351, 281, 330 & Cylinder: 6, 8 & Block: L, V & Bore(in): 4.00, 3.55 & Bore(mm): 101.6, 90.2 & Stroke(in): 3.98, 3.50, 3.54, 4.17 & Stroke(mm): 101.0, 88.9, 90.0, 105.7 & Transmission Code: M5R2, R2 & Transmission Base Gear: 5 & Transmission Control Type: Manual & Drive: 4WD, Rwd / Note: M5R2 Manual Transmission, 3rd-4th Synchro Assembly, 0.320 inch Wide Fork Slot, Does Not Include Keys, Springs, Or Synchro Rings)