Is this for a G.M.C.:)? Replacement engine?? Wish I knew of one. Try Jeff Bradshaw,in Selma Or. He specializes in T.F. trucks,mostly 1/2-1-tons. He does part out big trucks,as well. www.elderlyiron.com/"Redneck Restorations:This Old Truck". I bought parts from him before,and the prices and shipping are reasonable. Hope this helps. Wouldn't hurt to post an ad in "Parts Wanted". Reach a bigger audience!