The rams are 75mm / 2.95" - so close to 3". They can lift the new 35' drapers both rigid and flex. Not too sure if there is disposition for a 3rd ram.
88 series were re-designed from the ground up. Heavier chassis / front axle beam, 60/40 weight split (claim they need no rear weights), new rear axle, common feeder face (still short in length), electric sieve adjustment, larger clean grain elevator, 10/20 series style unloading auger, bin & extension, longer drop down straw spreaders, quick change 2 speed spreader drive, all new guarding / covers, sieves are easier to get out, top engine deck changes (auger saddle location), under cover service lights, new stationary air screen with revolving hydraulic evacuation wand, hydro pumps and motors have been upgraded, rotor gearbox shift lever location change, rotor drive area enhancements, auto crop settings, new a post (MX STX style) with service functions, header sensitivity adjustment etc etc, new cab filter design, loads more changes. If anyone else wants to add stuff go for it.