2nd gen rear brake caliper on 1st gen?

[jimmyenglish]

Hi gang! I put R1/R6 calipers on the front and a front one mounted backwards on the rear of my 86'. The fronts are great but the pads are smaller than the stock venture rear caliper/pads. It works OK but I notice less stopping power in the rear and I burned up a set of pads in less than 7000 kms (mostly 2 up, fully laden w/trailer). I would like to put the original back on the rear and was wondering will a 2nd gen rear caliper fit? They look the same but I haven't read of anyone doing that. It was cheaper to buy the R1/R6 caliper for the rear than replacing my pad channeled up, sticking, 30 year original. Thanks!

[bongobobny]

Yes, from what I remember the rear caliper on the MK2 is interchangeable with the 2nd Gen caliper. Part of me wants to say they are the same caliper...