Garin1, no offense meant but since we're talking about getting into tight spaces I need to clarify your numbers. I think your 3650RK is probably heavier coming out of the factory door than is the 3295RK but the 3295RK has both a very high carrying capacity and the highest GVWR of all Montanas. Thus it can be loaded more heavily. Your GVWR is 14,000. The new 3295RK GVWR is 14,485. Our 2003 model has GVWR of 14,300. A CAT scale says ours weighs 14,360, which is 60 lbs more than the GVWR of a 3650RK. Also, the specs show the 3650RK being exactly 2 feet longer than the 3295RK. I can't tell you actual length on yours but would guess 38' or a bit more. Ours measures actual length of 36' 4". So they are actually very close in length and weight.
Again, no offense meant. Just wanted to point out that if we can get our 3295RK in a site you probably can get the 3650RK in there also unless we're maxed out in a site. Then you might not.
Our actual pinweight is 3,300 lbs. I, too, do not understand why the big difference in pinweight among models.