Hello!
I bought an 84 about a year ago to drive/wheel while fixing my 83. Since then I've developed some braking issues on the front.
(I posted this in the 84-85 section also but thought I'd post it here as well considering it's basically just a SFA question, sorry moderators if that was wrong)

The previous owner said that him and his brother did a vented rotor / larger caliper mod at some point. But he didn't remember which way they went about doing it (said his brother just showed up with the parts).

Now that I need to do some work on the brakes that is turning out to be a pain. I've never done the mod myself but I've heard / read that there are multiple possible ways to do this mod and if I remember correctly some even involve swapping over to IFS hubs.

Can anyone identify which calipers and rotors these are?
Also, I doubt he swapped to IFS hubs and these look to be the same as my 83 SFA hubs but I haven't had an opportunity to measure them against each other yet and it may be a minute before I could get to the 83 to do so. Does anyone have a suggestion of an easy way to spot IFS hubs swapped to a SFA? I've never had an IFS truck so not sure what to look for.

Thanks in advance for any help,

Sam


Whole assembly with 2" spacer attached, PO removed the rock guards.



Caliper outside



Caliper back (I know, the clip was dragging)



Caliper inside



Caliper stamp



Rotor thickness



Rotor hub attachment / measurement



What a great helper...haha

 

That looks to be a V6 calipers with SFA hubs, just like what I'm currently running. The IFS hubs moves the wheel mount surface out ~1.5".
You have the SFA V6 rotors, they are not off the shelf V6 rotors, but the calipers and pads are. The rotors are made at the right offset that allows the system to just bolt right up to SFA knuckles.
I'm pretty sure the stock V6 rotors have a bigger offset because they're meant for IFS style hubs.

EDIT: Just so all the info is here too, Rattlewagon noted in another thread that the rotors used in this mod are FJ60 rotors, mine were just from a LCE kit so I didn't remember.

 

Thanks Bingle!

Yeah I just saw Rattle's comment also.

So looks like we're looking at 3.0 V6 calipers and FJ60 (or maybe FJ40? / LCE? / other aftermarket SFA V6 rotors?) on SFA hubs.

 

Stage 4 S12W calipers, appear to be from a 90's 4Runner.

https://www.rockauto.com/en/catalog/...b,caliper,1704

https://www.google.com/search?q=s12w...hrome&ie=UTF-8

Last one I just googled "S12W caliper, based on the number on the caliper shown in your 5th pic.