I heard it mentioned more than once on here that 156 and 159 front fogs are the same. Having googled a bit they look the same...but have different part numbers. Can anyone confirm that they are interchangeable..or not. 156 fogs are literally half the price...so even if they are not 100% identical, as long as they fit properly that will do...they will certainly look better than fast yellowing rusty ones! I look forward to your replies. Dean.