What'* the difference between an 89 h body and C body? I'm driving my grandma'* car while mine is in the shop. I thought it was an H, cause everything is so similar to my parents' old 89 Bonneville. I just checked the VIN and it is indeed a C.

Well unless it'* an Olds 98 or Buick Park Avenue you can rest assured you're driving an "H" Body. I think VIN C refers to the 3800 Engine.

Oops, forgot to mention that it'* an 89 Olds 98. Body AND engine are "C".

Things are pretty much the same. The drive train is basically identicle. The 98 has a softer ride so it doesn't handle as well as your Bonneville. You can really stretch out in the back seat as legroom is much more generous. And you can throw in a few more golf clubs in the trunk as it holds 3 more cubic feet of turf than the Bonneville. Also most 98'* have a front bench seat and a few other creature comforts.

Many things are swappable though. I used a steering column out of a '90 PA and put it in my '87, fit just fine. I think it was mostly just the increased wheelbase and things like that.