1991 Caterpillar D7H, Blade is 11 ft. 6 inches wide, triple shank ripper w/ one tooth, sprockets look good, track chains have wear, track pads worn, cab is aftermarket / made. Dozer shifts good, runs good, steers good. Blade tilt works, blade lifts, but the RPM has to be above idle. Unit shows 11,500 hours. / Year model according to CAT SIS is 1991