Why not use sport Trac calipers for sport tack rotor swap?

mr.tom · May 20, 2018

Thread title says it all. If going to the trouble of making brackets why wouldn't a person just go ahead and use the sport trac calipers or lincoln aviator calipers, or some wilwoods for that matter? The aviator's would work, i believe, only the holes are spaced 4&7/8 apart and they are beefy. I haven't had a chance to get my hands on some Sport Trac calipers, but why not use them?

I've seen demonstrations of large rotors with stock calipers overlayed and there's definitely a little bit of a mismatch. I'm sure that the stock 95 to 97 calipers would still brake better on sport trac rotors than they would on stock rotors but wouldn't the sport trac calipers make more sense?

It's entirely possible that I'm missing something obvious, it's happened before, but I haven't read anywhere a compelling reason not to use Sport Trac calipers with the st rotor conversion.

Ftr, I had a long introductory post with pictures of my ride and everything I've done to it but it logged me out automatically and when I hit submit it it was gone and the back button didn't help. I had intended to ask this question in that post.

Cheers!

alwaysFlOoReD · May 21, 2018

Welcome to TRS.

I can't help on your main question, I don't have experience. Hopefully one of the more knowledgeable members will chime in.

On the disappearing post, use the "go advanced" button and write your answer there. That will save your response so you can get back to it in most cases.

Ranger850 · May 21, 2018

I would think if you did rotors, you had to do calipers. Since the caliper cradles the rotor, the rotor has to fit in the caliper so I don't see how the smaller calipers built for a smaller rotor would fit over the larger rotor.

85_Ranger4x4 · May 21, 2018

If I was to try it, that would be the first thing I would try. Since it seems that nobody is trying it by now my gut says there is something about it that won't work. In '04 the ST changed a lot and the front suspension had already changed a lot since the TIB/TTB days, it is a miracle that the bolt pattern and rotor offset stayed the same really.

For those (like me initially) who have no idea what is being discussed:

http://www.therangerstation.com/how-to/wheels_and_brakes/sport-trac-12-inch-rotor-upgrade-for-your-2wd-ford-ranger/

1996xlt · May 21, 2018

85_Ranger4x4 said:
If I was to try it, that would be the first thing I would try. Since it seems that nobody is trying it by now my gut says there is something about it that won't work. In '04 the ST changed a lot and the front suspension had already changed a lot since the TIB/TTB days, it is a miracle that the bolt pattern and rotor offset stayed the same really.

For those (like me initially) who have no idea what is being discussed:

http://www.therangerstation.com/how-to/wheels_and_brakes/sport-trac-12-inch-rotor-upgrade-for-your-2wd-ford-ranger/

To add to that, the Aviator swap would require at least a 17'' wheel based on this thread (granted this applies to the 02-05 Explorers) and in that application you'd have to swap the whole steering knuckle: http://www.explorerforum.com/forums/index.php?threads/explorer-to-aviator-front-brake-upgrade.391752/#post-3258903

While I didn't see your initial thread I'd imagine by your post you have a 4x4 TTB truck and aside from the ST braking components at a minimum you'd need to fabricate similar brackets to what 85_Ranger4x4's link mentions and most likely use 16" wheels if you don't already have them.

I'd imagine the swap from a 04 ST to a torsion bar Ranger 98-11 (I believe the later trucks already had this upgrade) would be likely a bolt-on swap from the knuckle out.

Why not use sport Trac calipers for sport tack rotor swap?

mr.tom

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alwaysFlOoReD

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Ranger850

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1996xlt

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