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Discussion in 'Mustang Chit Chat' started by WNYGT5-0, May 10, 2020.
The Mustang GT Base Wheels.
I am in a grove. One of my wheels needed a touch up.
What are the measurements/offset of the base wheels?
Base is 18x8 and 44 offset. The Brembo wheels 19x9 and 42 offset. Then 20mm spacer=8.5mm clearance which is a lot. 17mm Spacer = 5.5mm clearance which is just right and 15mm spacer is 3.5mm clearance which = absolute minimum.
Thank you for your help.
I successfully got em mounted and working with a 10mm spacer. I may increase it to a 11 or 12mm for peace of mind as there's only about 1-1.5mm of clearance with the current spacer.
I'll attach photos as well
In terms of bite force, Yea theres DEFINITELY a noticeable difference. The weight shifts much more forward under hard breaking (when bedding brakes, all my stuff went flying when I slammed the brakes)
Looks good. Is this the 14” set up and what size wheels are you running?
Yea 14 inch rotors (DFC)
Brembo replicas (nugeons from rockauto)
Bosch ceramic pads
20X8.5 and 20x10 Performance Pack Replicas (VOXX)
Remember I did all four wheels. I am using 13.8's GT500s in the back which might offset the weight shift a little. Yes, 1.5 mm is not enough with a 10mm spacer. A 1/2 inch spacer would work perfect. Interesting that you need a 1/2 inch or 12.5mm spacer with second gen PP wheels. With me it's 17mm spacer with first gen base wheels.
Because of the spoke design. They’re more concave.
I was thinking all along that those PP wheels of a second and third gen cars would fit over the Brembo brakes of the Gen 1 cars. I guess not. Using Second Gen PP wheels, you need a 1/2 inch spacer for the fronts vis 17 mm for the Base Wheels. For me I ordered 2009 GT 500 front brakes and 2014 GT 500 back brakes. Then one of those aluminum Ebay adaptors from a guy in NC. Nothing fancy. Just Raybestos stock street parts from RockAuto and the Calipers with no core charge from Amazon.
Then 17mm spacers from a aerospace company in LA.
Ford designed the S550 to have the hub stick out further like by a 1/2” so the wheels can stick out further and away from the calipers. Pretty much like using spacers. They also don’t have to design wheels with a lower offset or design the spokes to be concave. This is why S550 wheels require spacers when using them on S197 cars.
and a false report that S550 wheels do not fit S197 cars. True to a point for only Brembo to Brembo. S550 wheels well fit fine on a Base Non-Brembo S197 using S197 lug nuts. You also can NOT use S550 rotors on a S197. Then there are spacers with S550 lugs that will fit S197s using a combo of S197/S550 lug nuts. The Poke look is all the rage with the S550 set and you get that with 1/2 inch additional spacers on top of the standard Ford Thinking.