There are 2 different front bumper signal housings for 1st gen, 79-82 and 83-86. They are both different from each other and from the second gen bumper lights. The 79-82 are easier to find than the 83-86; I am trying to locate a set for my 86 and haven't found any. The second gen are close, but are a 1/4" too long. To restore the reflector in the housing, get a can of Eastwood's reflector paint; it puts a near chrome like finish on whatever you spray with it and can even be polished to a mirror finish when a few coats are applied. I used it on all my lights to improve the output on brand new fixtures.