Small bolt pattern Brakes.

Mark340 said

Autozone claims to have brake drums for a 1971 Plymouth Duster 340...part number 8801 made by Duralast. Never talked to them in person, but out of curiousity I googled it this morning and found them....sounds too good to be true...might be...good luck! If you don't have an autozone near you I go to mine all the time...store in Bulverde/Spring Branch TX, 78070...send them to that store and I can try them on my sbp 8 3/4 w/drums on rear 71 Duster...if they fit I can ship them to you. Mark pm me if I can help

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If you look at the details of that drum you will see the pattern is listed as 110mm and our cars are 5 on 4 or 101.6mm.

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They are also too wide. Our drums run a 1 3/4 wide shoe and the drum is slightly wider but not over 3/4 of an inch.

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They have the 2.58 depth listed as mm but that is screwed up too because that would equal the following.

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You can also find the real deal listed at Advance and that is great until you try to check out then you are told your order contains a quanity not available.

Same thing just happened to another member at Rock Auto.