1971 GMC vs 1968 Chevrolet popularity

[GuyO]

Hi Wideside, apparently I didn't make my point very well. I think your responses will be more in favor of Chevy because there are just more of them. There were (and are now) far more Chevy dealers than GMC then, therefore they outsold GMC by a very large margin. It doesn't necessarily make Chevy sell for more money, just a larger market. That really is my only point. For sure short fleets are more desirable than short stepsides regardless of make. Also I didn't mean to say that 71 had come stock with 351 V6, what I meant was the V6 in a GMC would be unique to GMC. Yours just happens to be a 71, so I used 71 as an example. But it makes a good question; at what point does a modification such as engine replacement hurt value? As a buyer/seller I also look at quality and color of paint, rims and tires, shocks and sway bars, AC or not, headliner, tilt, etc. in addition to emblems and logo's. I see price elasticity of about 20% in the Seattle area for similar products.