13" brakes on a 14bSF?

[boy&hisdogs]

I bought a 14bSF rear end out of a 8 lug 4x4 Suburban from the pick-n-pull. I then got 6 lug shafts out of another 14b (k1500) truck and slapped them in. Now I'm doing my brakes and... all the 11" parts I bought are too small, including the drums. The original brakes on the axle are definitely 13". The drums are both too small and don't even reach the backing plate all the way.

I thought only the FF had the 13" brakes? Can I change to the 11" backing plates and have everything work or do I have to start over with a different axle?

I'd definitely like the 13" brakes if I can get 6 lug drums for it but I'll stick with the 11s if thats what I have to do to stay 6 lug.

 

[b454rat]

Tahoe's and yukon's had the bigger brakes, try those.

 

[Supercharged111]

I bought a 14bSF rear end out of a 8 lug 4x4 Suburban from the pick-n-pull. I then got 6 lug shafts out of another 14b (k1500) truck and slapped them in. Now I'm doing my brakes and... all the 11" parts I bought are too small, including the drums. The original brakes on the axle are definitely 13". The drums are both too small and don't even reach the backing plate all the way.

I thought only the FF had the 13" brakes? Can I change to the 11" backing plates and have everything work or do I have to start over with a different axle?

I'd definitely like the 13" brakes if I can get 6 lug drums for it but I'll stick with the 11s if thats what I have to do to stay 6 lug.

The axle tube lengths are different from 6 lug to 8.

 

[boy&hisdogs]

The axle tube lengths are different from 6 lug to 8.

Thanks, I was afraid that would be the case. I guess I'll have to keep looking.

 

[Supercharged111]

Thanks, I was afraid that would be the case. I guess I'll have to keep looking.

Why don't you just grab the housing you sourced the 6 lug shafts from?

 

[boy&hisdogs]

Why don't you just grab the housing you sourced the 6 lug shafts from?

Because the 8 lug rear had 4.10s and the 6 lug one only had 3.73. I had originally planned to stick with the 4.10s but I decided to go lower and just have it all regeared anyway so I'll see what else I can find.

 

[Supercharged111]

Because the 8 lug rear had 4.10s and the 6 lug one only had 3.73. I had originally planned to stick with the 4.10s but I decided to go lower and just have it all regeared anyway so I'll see what else I can find.

You can put the 4.10 in the 6 lug housing.

 

[GoToGuy]

The eight lug shafts go with the big drums. My k2500 has the 14 bolt. Bigger shoes and drums. And has 6 lug wheels. Can you get the 6 lug backing plates? My k2500 has locker and 3.73.

 

[Supercharged111]

The eight lug shafts go with the big drums. My k2500 has the 14 bolt. Bigger shoes and drums. And has 6 lug wheels. Can you get the 6 lug backing plates? My k2500 has locker and 3.73.

The bigger drums are also deeper which is why the axle tubes are different lengths. So while he needs them for a factory 6 lug setup, they won't do him any good on an 8 lug housing.

 

[boy&hisdogs]

The bigger drums are also deeper which is why the axle tubes are different lengths. So while he needs them for a factory 6 lug setup, they won't do him any good on an 8 lug housing.

Yep, I put the 6 lug drums (and shafts) on the 8 lug housing and they were not even close to touching the backing plate.