Will a 1990 Jeep Wrangler hard top work on a 1997 Jeep Wrangler?
I shouldn't, 1990 is a YJ and the 97 is a TJ.
No, when the Jeep was remodeled in 2006 the entire dimensions of the car changed, including the hard top. On the 2006 and on, the hard tops are wider to accommadate the new width of the car. Before '06, Wranglers were less wide therefore shaped differently. (I have a Wrangler JK with a hard top) The body chnged in 2007, so 1999 and 2006 should be the same size.
Almost all accessories will work for the 2005 Jeep Wrangler Unlimited (LJ) and any 1997-2006 Jeep Wrangler (TJ). The 2004-2006 Unlmiteds simply have a longer wheelbase...any body parts and soft top/hard top parts probably wont work. Bumpers/lights/stereos/winches should work. If the part you are looking to use would mount on the Jeep length wise, it most likely won't. If it would mount on the vehicle width wise, it most likely will.