This core is extremely rare and your core is required to fulfill this order. Contact us for instructions on sending your core in for Rebuild & Return.The R38498 11" Transmission Disc, Woven, w/ 1-1/16" 16 Spline Hub - Reman fits equipment brands such as: John DeereThe R38498 is a substitute for the following discontinued products: R38500, R38500 HD6