Re: Jeep Questions , Help!!
I don't believe there is a lot of diference between the 304 and the 258 as far as performance is concerned. The 304 has a bit more horse power and just a little more torgue. I think the 304 is a slightly better motor. The frame on the 76 and newer CJ's were much improved over the 75 and older models. Jeep widened them and fully boxed them after 76. I don't think you will have too much flexing particularly if you don't plan on wheeling it too hard. If you experience alot of unwanted flex I would check the condition of the body mounts and bushings. If the tranny and drivetrain seems to be operating correctly and installed well, I believe you have a pretty good deal. This is assuming the body is in good condition. As far as reliablilty, the 304 is every bit as reliable as the 258 (and sounds better too). Hope this helps.