Used A/C belt tensioning pulley with new bearing. Ford standardized some of the brackets starting in 1968. This adjustable bracket and pulley was used on all 1968-69 390 / 428CJ engines and 1968 289 and 302 engines after 3/1/1968. Additionally it was on 1969 351W engines as well. This adjustable tensioner pulley is identified by having the small bearing pulley. Same as the DOAZ-8678-C adjustable idler pulley only with a big bearing pulley.
We also offer a bearing replacement service to rebuild your adjustable idler pulley, see item 27539.
Ford part # C8AZ-8678-A.