For sale - Original parts suitable for GMC and Chevrolet (sedan and pickup) 🔧 Models from 1973 to 1987 1. Front differential double • For size 25 • From GMC 20 Chevrolet • With stabilizer bar • Differential gear size: 41/11 • Without rims or set 2. Rear differential • Differential gear size: 41/11 • Fits models 73 to 87 3. Gearbox and double (guaranteed clean) The gearbox and double have been sold • Fits GMC and Chevrolet sedan and pickup • From models 73 to 87