Date registered: Aug 2002
Vehicle: '85 2.3-16 '99 C280 '11 GLK350
Location: Scottsdale, Arizona, USA
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: instaling rear headrests in 1984 300d
Not sure if this information would apply to you, but on the W201 of the same vintage, there are headrest brackets that can be bolted onto the bulkhead behind the rear seat. The spacing of the metal prongs for the rear headrests are the same width as the front headrests, so in the event that one can't find the rear units, front ones can be modified to fit, just by trimming the length of the prongs. Small cuts have to be made at the top of the rear seat to push the headrests into the brackets.