Okay guys...
I got a box of parts from another member and in going through trying to find things to fix/replace before National Takeover next weekend to ensure a happy weekend, I keep coming back to brakes. They need work on my '84. I'll do the front pads, but dont have time to get into the drums before TO. Anyway, I was glancing in my parts box, and there is a master cylinder in there... I know these parts came from a 22RE truck, and I assume it was IFS, but I cant remember. Anyway...
It IS an Aisin MC. As is the one in the 84 now. The one in my truck currently is stamped with an R 51 on the side, and I believe (although almost impossible to make out) it is stamped with a 13/16" bore size. The spare is Stamped with an R 52, and a very clear 15/16" bore size.
Current R51 (13/16?)
Spare R52 (15/16)
I am curious what belongs where. I know with the bigger IFS Calipers a lot of people recomend going to the 1" bore MC sold by Marlin, Trail Gear, and others, I have also heard of people upgrading to a Cruiser MC. Is the 1" off the cruiser? Or is it the stock MC from the IFS trucks? If the IFS came with a 1" where does the differentiation line go betweem who got 13/16 MC's and the 15/16 MC's?
I think I will go ahead and swap to the 15/16" MC before TO, but curious if you guys know of anything I should look out for...
Thanks!