yes
Not without modification
1977-85 Impala, 1977-90 Caprice
Any 1977-85 Impala or 1977-90 Caprice will work
78-87 Monte Carlo is a G-Body GM car that is smaller than a 77-90 Caprice which is a B-Body GM car. The seats in a Monte Carlo will fit in a Caprice, but they may not look quite right. You will need to do bolt location modifications. I would not recommend trying to use a bench seat from a Monte in a Caprice. It is not wide enough.
Yes.
It should fit because they had the same front end from 82 - 90
dodge caravan fits perfect
90 percent of 87 is 78.3
Any windshield from a 1977-85 Impala or 1977-90 Caprice. A contemporary GM B-body (Buick LeSabre, Olds Delta 88, etc) should work also.
Actually yes it will. Caprice/Impalas from 1977-1996 Share the same basic chassis. It will fit, also how do I know for a fact? I have a 9c1 rear end in my 88 caprice. Also just about any and all Suspension parts from a 91-96 caprice/impala will work with a 77-90 caprice/impala. However you will now have two different bolt patterns, unless you have a 80's 9c1 police package caprice which I believe did come with the same 5x5 bolt pattern as the 91's caprice/impalas
Yes they can 16", 17", and 18' factory wheels will fit. The early 15" wheels will only fit 90-92 because of the caliper