I was late to slo1’s original post offering a new rear caliper mount for 4th and 5th Gens, but by the time I found it, eyrwbvfr had come up with a very nicely designed easier mounted adapter. So I jumped on it, having years ago swapped front ends and done the crossover line to link up the three pistons on the rear caliper, but not really liking that whole thing.
Unmounted stock caliper with the crossover line:
What a beautiful looking piece:
Mounted right up perfectly, mounting holes were exactly right and a couple spare bolts I had laying around:
This was the orientation of the bleeder and banjo coming from a Duc 1098, but upon disassembly I noticed that everything was perfectly symmetrical including the holes for the bleeder and banjo. Both are the same size and conical at the bottom, so they are interchangeable.
Good clearances all around:
Split the caliper for thorough cleaning, totally symmetrical front to back (as mounted):
When I did the front end conversion and the crossover line to the rear I had the original mounting bolts drilled for safety wire since the fronts were and the rear basically never has to come off. By the same token, it basically is never looked at to ensure everything is tight. I could use the original already drilled bolts, but I still needed 2 new bolts to mount the caliper to the adapter. I could get drilled stainless from ProBoltUSA, but the ti are right there for a few many dollars more. Since I am getting 2 new drilled ti bolts, I should get all 4 so they match. Better go ahead and get some new ti caliper assembly bolts and bleed screw while they are apart. Why not get a drilled titanium banjo bolt? Safety first! That's where it all kinda went pear shaped on me. I ordered the ti bolts on June 30. After a week I emailed to see where they might be in the process and was told that the bleeder was backordered until 7-19. On 7-26 I called to ask again and was told the final parts were due in and would be shipped on 7-29. Finally got shipping notice on 7-31, fully a month after I ordered! So they came in today (8-2) and I got everything assembled:
Ok, I'm no pro at safety wiring but I don't think anything is going anywhere...
I haven't had a chance to ride it yet. Definitely have to "bed in" the pads, but it bled out pretty easy. I'll likely fit some sort of abrasion shield on the line there in the last pic where it touches the hanger. Notice that I swapped the banjo and bleeder from the earlier pics.
Also, I took both calipers to the post office to weigh them on the scale there. 3 lb, 2.4 oz for the stocker with all bolts and the crossover line still attached. Brembo caliper with all titanium bolts and the adapter bracket mounted was 1 lb, 7.8 oz! (Pads included in both weights)