Besides those issues already mentioned, space is a huge difference. A puller will require a long drive shaft and carrier and exhaust system going right down the middle of the RV. A pusher has all that space available for holding tanks, fuel tanks and pass through storage. The puller will also most likely have a dog house cover for the motor inside the RV. A pusher is flat floor space in the front. Lots of differences like that. Pushers usually cost more, but for my dollar is was well worth it. I also own a diesel pick up, so I am not opposed to having a front end diesel vehicle. In a MH I prefer a pusher.