74 CJ drum brakes 11 or 10"?

I'm looking at the manuals and all I see is that the 72 and later jeeps had 11" drums. Truth be told I think they all had 10's until 76. Anyone confirm this. Not as familiar w/ the new stuff.
74 CJ6 I found had 15X8 Renegade rims. The rims don't fit over the 11" drum conversion. 10's yes, 11's no.

 

Confirming what Lynn said. The '74 that I restored had 11" drums on all corners. I pulled the 11's that I have on Lulu from an intermediate in the junkyard. The 11" finned drums have a larger "skirt" toward the back than the non-finned. I have aftermarket 15x8 rims and they fit over the finned drums fine.

Just FYI.

 

Don't mean to hijack this thread but is there really a difference in stopping power between 10 and 11 inch brakes?

 

VERY noticable difference for me, and I only went to 11's up front. Stops much straighter, and with less pedal effort.

Very well worth the cost.

 

My 72 has 11".

 

I guess disk's make a huge difference as Patrick asked at Tellico how far after we got out of the water crossing was it before I had brakes, heck I had brakes in the water. To me the disk brakes turned out to be a no brainer compared to any drums after they were installed, front brakes do roughly 70% of the braking so I would think that 11" brakes on the front would make a huge improvement but disks would be that much better and then you don't have to drill them to let the water out. Although I will probably drill my new 10" rear drums now, and yes all 72-75 cj5's had 11" brakes from the factory.

 

I took these rims off of a 74 CJ6 and sold it before looking at the drums.
Why wouldn't the rims fit over the 11'' drum conversion? I bought the 11" conversion as a kit from 4Wheel Drive Parts Wholsellers years ago.

 

Yes 15" rims

 

To my knowledge, 15" rims will fit over an 11" drum.... Not sure what the problem might have been with yours?

I have aftermarket 15's, over 11" drums. And on the '74, it had stock 15's (Slotted Mags) over 11" drums.

Something sounds amiss...