Did a search but could not find an answer disk brake swap (1 Viewer)

[copasspupil]

Does the swap change the backspacing at all on it? Generally I've read that the backspacing of 3.5" is ideal but on a 15" rim, the conversion will rub slightly/corrected with some grinding off part of the caliper. 16 or 17" rims are better.

 

[Downey]

I have not heard this, the disc brake conversion should not present a clearance problem for Toyota rims. There are tie rod end clearance problems with Chevy rims, and possibly caliper clearance problems as well with Chevy rims???

 

[copasspupil]

The reason why I'm asking it that I found a set of 35 1250 15 on chevy black steel rims from a k5 blazer. My experience is from my mustang is that disk brake swaps will possibly change the track width and thus change the backspacing.

 

[Cruiser Clint]

I never had drum fronts, but when I upgraded my '76 calipers to mid 90's 4 Runner calipers I did have to grind down the ribs cast into the calipers. IMHO it was very minor, and would be dependent on the type of rims you have. At the time I had "D" shaped hole that were were rolled in just enough to touch the ribs of the new calipers. Minimal grinding was required with a small .25" spacer and I was okay. When I switched to bead lock without a rolled in hole, I wasn't even close without a spacer.

I believe that it will depend on the rim and calipers that you choose. HTH.

Clint

 

[Degnol]

I ran 15x8 AR Outlaws on my drum setup and had to use 1/4" spacers, even with the correct BS. When I swapped in a '77 axle I did not need a spacer with the same aluminum rims Now i have stock steelies and still no spacer. Cannot speak to a '60 knuckle swap.

Ed

 

[inkpot]

The reason why I'm asking it that I found a set of 35 1250 15 on chevy black steel rims from a k5 blazer. My experience is from my mustang is that disk brake swaps will possibly change the track width and thus change the backspacing.

Howdy! Most Chevy 6-bolt truck rims are 4.0 backspacing, so it often creates a clearance problem. Only way to tell for sure it to test fit one. John