My 54 3100 had a leaking right front wheel cylinder. I replaced it and cleaned up the mess ,repacked the bearings..its good to go..I was thinking that I had replace the front wheel cylinders years ago,but, no I had not. Both original and not a problem with them at all.Till the right one started leaking.. not bad for a 65 year old truck! Next will be the master cylinder. Its staring to leak now.