[HDFlyer76]

I have a just purchased1984 GT 5.0 that has the original Michelin 220/55 R 390 (TRX Wheels 4 lugs) which I cannot locate for any resaonable price. It appears that I should change the wheels and then move to a more standard tire size. I am trying to determine the maximum tire size that will not rub or require modification to the car. My goals is to get the following size for the car 245/40 -17 or even a 255/40 17. The wheel size would be 17"x8".

I have been told the maximum size that will fit is 225/60 15.

Any advice is welcome.

[maxxxxd]

I have a 92 and I have seen 275/40x17s on stock and lowered Fox Stangs. I run 255/40zr17s in the back and 235/45zr17s up front. The wheels are 17x8 front and 17x9.5 rear... Not sure if the 84 is any different. I did cut my rear fenders in readyness for 275/40/17 cominb soon.

[Twister]

I have 245/45r17's on my 86

[HDFlyer76]

Twisterm did the tires rub at all on your '86? Also, did you lower your call at all?

[Twister]

Originally posted by HDFlyer76
Twisterm did the tires rub at all on your '86? Also, did you lower your call at all?

slight rub at full steering lock and yes, my car is lowered, I have FRPP springs

[motorsport007]

My 86 has 245-45-17 tires on 17x8 wheels
with a +20mm offset
lower about 1.5"
fits like a dream, no issues, or havent had any
problems for 5 yrs.

I could use your trx wheels for my 79 if interested
in getting rid of them, lmk
thanks

[meangreen92]

Originally Posted by motorsport007

My 86 has 245-45-17 tires on 17x8 wheels
with a +20mm offset
lower about 1.5"
fits like a dream, no issues, or havent had any
problems for 5 yrs.

I could use your trx wheels for my 79 if interested
in getting rid of them, lmk
thanks

Cool ride!!!
Tire Rack might $till have $ome TRX tire$, but they're $ure to be expen$ive a$ heck. If you have any connections in Europe, and in the shipping industry, you might be able to save some $$$ on them.
Wheel Vintiques, or someone like that, needs to tool up some 15 and/or 16 inch knockoffs...