LOL! I mentioned not having a 'too-narrow' axle width in my first post; guess you just didn't recognize it as such. The width of the wheelbase is determined by the length of the axle; therefore,when I suggested you not get 'too narrow a wheelbase'...that is directly correlated to the length of the axle!
with apologies to the OP for going a tad OT, but because I think it might be of some general interest to other drivers...Leia, I'd love to see some pics of your cart and pole, separate from the horses, and hear more about exactly what you did(besides having a longer axle installed, which you mentioned), to turn your basic EE into 'nearly' a Cape Cart. I clearly recall that you had little good to say about using the team pole that you can(or oould, before the 'real' Frontier ended cart building)buy from Frontier, back in discussions of a few years back; could you share what changed your mind?
Full disclosure: I did buy a team pole from Frontier, and used it just a few times, to 'start' some horses as pairs(ones who were already going as a single). It worked OK, but I would not try to drive regularly or on any seriously long/challenging drive with that rig, though I'd LOVE to have a true Cape Cart in mini size(am sure you could have one built, but at what price?? Might well be even MORE in cost than a suitable 4 wheeled vehicle!! I am no longer going to drive pairs. Just sold the 'other half' of mine(the one I DIDN'T breed and raise and therefore, love like another son) to a dear friend who will give him a good home for life, and a good job "training" youngsters and new adults in everything from Halter obst. to Hunter to Showmanship to Driving).I have sold one of my three pair vehicles, and plan to sell the other two, plus two sets of pair harness, and finally be able to concentrate on driving my 'over' mini.
Margo