This B&M Traveler 2000 torque converter fits 1991-96 GM 4L80E transmissions and retains lock-up feature. Traveler torque converters are an excellent choice for stock vehicles, vehicles with light performance modifications, tow vehicles and RV's. This converter retains the lockup feature. The additional stall of the Traveler 2000 makes acceleration much crisper, easier for towing and just fun to drive. Traveler converters are fully balanced and pressure tested by expert technicians and are manufactured to B&M's exacting tolerances for long life. Includes new precision pump drive tube, heavy duty needle bearings, furnace brazed and new sprag and rollers in stator. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 11.50 in. bolt circle.