I changed them out today, not sure if my originals were bad or not. No signs of leakage, but the new ones were a good 1/2" taller. Won't know if there will be a noticeable difference quite yet, waiting on another shipment of parts to put the front of the motor back together.

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Brian
87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017
02 F350 Powerstroke 180K
05 Chevy Express 1 ton w/Royal Utility box 120K
08 Infiniti FX-35 40K
15 Golf Sportwagen TDI 35K
10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K