RedHot71 Posted February 17, 2019 Report Share Posted February 17, 2019 Waiting on a new master cylinder I ordered for my 2 1/2 ton dump truck. (Centric #130.81004) Bore size is 1 1/4". I have recently found one that is supposed to be for my truck, but bore size is 1 1/2". Have I ordered the wrong one or does someone know if what is en route to me will work with that size truck? Wanna go ahead & get the other on it's way to save time if it is necessary, & I'm sure if I install the Centric, I won't be able to return it. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted February 17, 2019 Report Share Posted February 17, 2019 Your B3 HH should have a 1-1/2" bore master cylinder...NOT a 1-1/4". I double checked in the B-3 shop manual and a DT service information /specification Bulletin for the New B-3 models 1951. Quote Link to comment Share on other sites More sharing options...
RedHot71 Posted February 17, 2019 Author Report Share Posted February 17, 2019 I was afraid of that. Mine is a B-3 JA. Same/Same? Quote Link to comment Share on other sites More sharing options...
Brent B3B Posted February 17, 2019 Report Share Posted February 17, 2019 53 minutes ago, RedHot71 said: I was afraid of that. Mine is a B-3 JA. Same/Same? You might wanna change your profile info ? Rob, will the 1-1/4 he ordered fit the "B4GA"? Quote Link to comment Share on other sites More sharing options...
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