Fan Clutch Question - Early 68 427/400

[Jack C.]

Reading throught the TGJM under Fan Clutch I see that the Bi-metallic type was used, but there is no reference to BB or SM or are they both the same?

[William C.]

Re: Fan Clutch Question - Early 68 427/400

Not the same, three part numbers are listed in the AIM for the SB, Only one is listed in the BB section, however there is a change in the part number for BB during the year, but the quality of the printing on my AIM does not allow the reading of the change description.

[Jack C.]

Re: Fan Clutch Question - Early 68 427/400

Thanks, I knew it wouldn't be that easy.