My stock Ford starter also has a similar spacer, made from aluminum. This was probably only done to the late cars. Thomas JDeRyke at aol.com skrev 2011-01-18 09.03: > I use a McLeod gear drive starter, and McLeod included a 5/8" thick spacer > for the 351-C. This was in 1992; still working just fine. FWIW- J DeRyke