Normal rotation (Non-reversing/for clockwise sweeping tachometers) drive. The drive and cable have been tested and confirmed to be in good working condition. The drive and cable both turn freely. The worm and pinion gears inside the drive have been checked and found to have only very slight wear. The worm and pinion gears have been cleaned and the drive housing has been repacked with fresh grease. Just what you see. I don’t have any pieces that aren’t shown in the pictures of the drive, and I don’t make reproductions of anything that’s not shown in the pictures of the drive. If you spent almost a thousand dollars on a Stewart Warner tach drive that’s just missing one piece, unfortunately I don’t have one of those pieces. I don’t make reproductions of that piece. The pictures of the brochure are for reference only. The brochure is not included. I can throw in a color photocopy of the brochure if it’s important (Only available if you’re purchasing the drive kit). Designed to work on any machine, motor or engine with an output shaft maximum rotational speed of 4,000 RPMs. These were most commonly used on newspaper printing machinery. Geared to drive Stewart Warner tachometers with a “2-1″ calibration (All Stewart Warner 2000 rpm, 2500 rpm, 3000 rpm, 3500 rpm, 4000 rpm, 4500 rpm and 5000 rpm tachometers, and most Stewart Warner 1500 rpm tachometers). Will also work with “1/2 to 1″calibrated “CW” drive Reliance tachometers made by Barbour Stockwell (Barbour Stockwell used a different system of marking the calibration ratio on their tachs). Will work on electric motors and on slow-revving engines such as hot bulb diesel engines, hit and miss gasoline engines, steam engines and automotive flathead gasoline engines. A hex bolt with a 1/16 slot machined into the hex will need to be installed in the shaft of the machine to take the blade of the input shaft of the drive. EAF951A will work in place of the. Bolt that would have originally been. A mount stamped 70885 is included with the drive. I won’t give the discount if you ask me after you pay for X, or if you are reading this after you bought two different items that don’t include this one. Q: I have a Stewart Warner generator mounted tach drive that’s missing the one piece that bolts up to the spinning part of the generator. Do you have an original one or make reproductions of them?