This listing is for a newly remanufactured 298 mm 30 spline torque converter that fits the GM 4L60E / 700R4 / 4L60 automatic transmissions. This is the same converter that is used behind the 1987-1996 4.3, 5.0 , 5.7 GM engines in vehicles like the Silverado, Yukon, Tahoe, Suburban, Blazer, Chevrolet and GMC trucks. Estimated stall speed is 1550-1700 RPM. We have multiples of this converter if you are needing more than one. No warranty or returns, and all sales are final, so please be confident that this is the converter you want before bidding. Please feel free to ask us any questions. Thank you.