Join Date: Jan 2015
Location: Injun Territory, 'Merica!
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Santo, cked two more '69's, & the rear in original 4K mile '72 Lux LeMans, no evidence of green caps. My own thought is the original vent for this rear are opaque plastic, top & bottom. the green capped vent appeared much later, & the green capped vent was used as a service part for earlier rears, similar deal to the black headed washer pumps that were used on Delco service replacement washer pumps through the 80's & 90's.