Ron42Dodge Posted May 8 Share Posted May 8 I thought it would be simple to order some front brake springs for my 42 Dodge but it has turned into a research project that I still have no clue. My 42 Dodge front brakes are a single cylinder with dual pistons just like most 42 Chrysler C34 DeSoto and Plymouth. These used 1 return spring #677466 pulling from both shoes close to the cylinder. This appears to be the Spring used for Chrysler, DeSoto and Dodge 6 cylinders and a few early 8 Cyl Chryslers. The 7 passenger cars and C36 and C37 had 2 Cylinders in the front (one upper and one lower. According to my books they still only had 1 spring # 854059 (18 coil) but I don't know how they were placed to return both shoes The 7 passenger rears and C36 and C37 were single cylinder dual piston and used spring #854049 (26 coil) Plymouth was a single cylinder dual piston but used Spring #301477 According to my D19, D22, D24 shop manual the 41, 42 and 46-48 Cars had 11" drums except for the 42, and 46-48 7 Passenger had 12" After the war Dodge went to 2 cylinders on each front brake and 2 #854059 Springs on each wheel. Each sping has one end attached to the the other shoe but one end is near the pivot which doesn't move much and the other end is near the expanding cylinder. In my mind Springs that work on single cylinder (dual pistons) have to stretch more and also have to return more than springs that only return a single Cylinder. Springs for 12" drums would seem to be 1" longer than for 11" drums I don't know what size drums Plymouth used from 1928 to 42 to know if the #301477 would work. I'm just not believing the #854059 is the right spring like the ones listed on Ebay hint It seems like spring #677466 has no replacemnt. Has anyone found a good answer? Looking at Andys site he shows one spring covering 28-47 All Mopars. I assume they had different part numbers for a reason. Link to comment Share on other sites More sharing options...
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