Originally Posted by Justgosurfin
Boywonder, sent you a PM. I’ll try to get a list of questions together but I guess a big one right now is how large is the cut out for an RB top? Lengths of the side rails would be great to as I’ll need to shorten the EB rails a bit to get the crossmember where it needs to go above the B pillar.
I may have the cutout dimensions somewhere..it's been years...
Here is one difference between the cutouts for the RB and EB tops:
The RB cutout starts right behind the B pillar support that spans across the roof...in fact the rear spot welded flange of that support needs to be removed as well...so the rear vertical face of the roof support at the B pillar is the front edge of the cutout.
On the EB, Sportsmobile installs another B pillar roof support directly behind the existing support and the cutout starts behind the second support. I think the support that they install is one harvested from further down the roof when making the cutout.
Since you are installing an EB top on an RB you'll have to determine where the cutout starts fore/aft, but I can't imagine it will be like the EB case above.
I would suggest sending AndrewST a PM and see if he can give you cutout info, since he did exactly what you want to do.
Also, do a search here for my build thread called "popping my top"......that should have some relevant tid-bits as well.