1992 Ezgo GXT 804

[jakj]

Hi this is my first post, so I will get right to the question. I have a 92 ezgo gxt 804 gas cart. When I bought it the guy told me it was set up for golf course use as far as the drive belt goes. We are going to use this in a campground which as dirt roads and hills. He said we should switch the belt to a 40" belt which I am assuming is a smaller belt than what is on there now? Does this sound correct? or does anyone else have another suggestion? He said by using the 40" belt the clutch will grab quicker and the cart will go up the hills better.
If this is true if someone could point me in the right direction as to where to buy one that would be a big help also. Part number, supplier, website? anything is better than where I am at now.

Thanks
Jakj