I did my 86 and it was a bit tough. I almost thought about pulling out the windshield to improve access! But my real problem was that the replacements I could find were not correct, so I suspect they changed the type/style at some point. Fortunately, I was able to read off the part number and cross reference it to a correct style at RockAuto.com. They shipped it to me and it fit fine.
Good luck
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There is no problem a little horsepower can't fix!
C4s: 1993 LT-1 coupe, 6-Speed, White w/black
1986 L-98 Coupe, 4+3 Trans, Satin Black w/red-black interior - SCCA Time Trial racecar.
C3: 1979 L-48 couple, auto, Red w/doeskin interior.
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