yes, S197 = 05-14 mustang chassis (stick axle)
what i can say is the extra factory trac-lok 8.8 diff i had lying around from my '13 GT looked MUCH different (smaller) than the OSG super 8.8 that they eventually sent me. unfortunately, i never took a pic, but sizing was completely different.
interesting - i've never actually test fit an S197 OSG in a super 8.8 because *they* told me it wouldn't work back then (i sent them a pile of parts to assemble a rear end in late 2014 that they then forwarded along to japan for r&d on what would become the option now available)
lucky for you...
got confused when you contrasted the OSG options - because you definitely *cannot* run a super 8.8 giken with a 3.15 gearset, it simply won't fit in the diff carriage (and the regular 8.8 diff won't work) - but you're welcome to try and report back what i already discovered the hard way in 2015...
not arguably, they ARE faster in *all* wet conditions - take this from someone that's been running them for (4) seasons in the PNW, from 3" downpour (lincoln nats 2018) to damp/drying and everything in between. there's a reason a lot of one lap cars run them - much faster than the contis in the...
This is what I had a friend design:
Had to lengthen the endlinks and notch the frame to gain some additional clearance, but no crushing/punctures to date. Inlets are in the high pressure zones next to the upper/lower grilles (made some 3D-printed inlets and had to relocate the intake...
was supposed to race with my lucky dog team there last fall, but covid put the kibosh on that.
i hear it's a really fun, technical track with varied elevation. you should get out if you can, i'll definitely be up there when things get back to normal.
The schedule sucks this year and I’m not gonna be able to make both Optima and the Vegas event work :(
That said, I’ll be at both Crows Landing events. Fuck a Fontana ProSolo in the ear though, never again on that small, bumpy, low grip, smelly lot!!
Here's a little data to add to the mix. Mounted up a set of RT660 315/30s on 19x12s and compared total width to my previous A052 315/30 on 18x12 setup. These now take the crown for the widest 315 I've ever used - Hoosier A7, BFG Rival S and the A052 among them. Excited to see how the compound...
i'll have feedback soon, as i will be working very closely with falken this season as one of their sponsored drivers. will be running a size i've never tried before - 315/30ZR19, since i was planning on adding 0.5" of ride height anyway, and the weight penalty is only ~3lbs/corner with...
i move my fenders around too much up front to be reliable, so i've always taken measurements off the pinch welds. 3" front, 3.75" rear on the 315 A052s. have experimented with less rake, but with the existing (significant) stagger in front/rear wheel rates, coupled with a very stiff FSB...
Gotta spend the time to sniff, then unpackage and do the math/scaling. It’s not hard, but very time consuming from all the trial and error required. I’ve done it on prior cars, but all desired inputs were already available for the S550 by the time I picked up an AIM (including brake pressure...
just realized I hadn’t posted a follow up pic of the upper vent my friend designed for me:
really pleased with the end result, and any semblance of hood buffeting is gone (even going 170+ @ COTA), which the hood vents alone could not prevent.