Newly Bagged GT PP. Wheel/tire fitment help needed.

stang9779

Well-Known Member
Joined
Feb 21, 2015
Threads
13
Messages
331
Reaction score
35
Location
Denver
Vehicle(s)
2015 GT Premium Performance Pack
I recently installed Air Lift performance 3H bags. My previous Wheel and Tire setup was as follows. SVE Gt350 20×10 275/35r20 on all four. This setup rubs on the front strut / airbag lower perch.
I'm looking for new wheel and tire setup.

Anybody have any insight on the RTR Tech 5's with a standard or staggered setup on bags? Looking for a nice flush mount setup, that I can air out safely.

Thx

 

ApexRaceParts

Well-Known Member
Gold Sponsor
Joined
Dec 27, 2016
Threads
63
Messages
769
Reaction score
337
Location
Bay Area
Vehicle(s)
Mustang
That SVE wheel was a 20x10" ET40, which the majority of 10" wheel wheels will be if they are to actually fit on the S550 chassis. Many companies make a 19 or 20x10" ET35 wheel, but this fitment is very aggressive in the rear and could rub, especially when aired out.

My best advice for you is to try a narrower wheel up front, like a 9.5" width and stick to a 255 or 275 wide tire. Another option would be to run a 10" wide wheel with an ET40 offset, but also a 5 to 10mm spacer up there. This way, the rear wouldn't poke with an ET40 offset and the front would be flush with an effective ET30 offset, while not rubbing.
 
OP
OP
stang9779

stang9779

Well-Known Member
Joined
Feb 21, 2015
Threads
13
Messages
331
Reaction score
35
Location
Denver
Vehicle(s)
2015 GT Premium Performance Pack
If I go with the RTR Tech 5 the fronts would be 20×9.5. Just not sure if the 20x10.5 would fit in the rear.
 

NightmareMoon

Well-Known Member
Joined
Nov 22, 2015
Threads
35
Messages
4,242
Reaction score
2,797
Location
Austin
Vehicle(s)
2016 Mustang GT PP
Vehicle Showcase
1
5mm spacers are pretty cheap. I’d start there, unless you’re just itching to change things up.
 
OP
OP
stang9779

stang9779

Well-Known Member
Joined
Feb 21, 2015
Threads
13
Messages
331
Reaction score
35
Location
Denver
Vehicle(s)
2015 GT Premium Performance Pack
5mm spacers are pretty cheap. I’d start there, unless you’re just itching to change things up.
At first I wanted the wheels I had to fit. The more I look the more I started to want to change things up.

At this point I'm torn. Never used spacers before. Will the wheels be in balance still with no vibrations?
 

ApexRaceParts

Well-Known Member
Gold Sponsor
Joined
Dec 27, 2016
Threads
63
Messages
769
Reaction score
337
Location
Bay Area
Vehicle(s)
Mustang
At first I wanted the wheels I had to fit. The more I look the more I started to want to change things up.

At this point I'm torn. Never used spacers before. Will the wheels be in balance still with no vibrations?
As long as you get some good quality ones, there shouldn't be any vibrations.

What are the offsets of their 20x10.5" wheel?
 
OP
OP
stang9779

stang9779

Well-Known Member
Joined
Feb 21, 2015
Threads
13
Messages
331
Reaction score
35
Location
Denver
Vehicle(s)
2015 GT Premium Performance Pack
As long as you get some good quality ones, there shouldn't be any vibrations.

What are the offsets of their 20x10.5" wheel?
+45.

I was thinking I would reuse my 275/35's on the rear for now. However if possible in the future upgrade to something wider. For the front I would get 255/35's for the 20x9.5.
 
Last edited:

ApexRaceParts

Well-Known Member
Gold Sponsor
Joined
Dec 27, 2016
Threads
63
Messages
769
Reaction score
337
Location
Bay Area
Vehicle(s)
Mustang
+45.

I was thinking I would reuse my 275/35's on the rear for now. However if possible in the future upgrade to something wider. For the front I would get 255/35's for the 20x9.5.
That will fit well in the rear. A bit of tire stretch but nothing obscene.
 

Burkey

Well-Known Member
Joined
Feb 9, 2016
Threads
87
Messages
5,033
Reaction score
3,349
Location
Australia
Vehicle(s)
2016 Mustang GT
Vehicle Showcase
1

 
MBGRAM-1
Top