They are made by US Mags. I went with the 17x8 in front which I believe is a 4.5" backspacing and 17x9 in the rear which I believe is a 5.5" backspace. I went with Nitto NT555 G2 tires that are 235/45/17 in front and 255/50/17 in the rear.
Dave there confirmed that 235 would fit on the front but wasn't sure what the widest rear would (due to the 69 only fenders) be so I went with a 255 to be on the safe side for now. I had 245 tires all around on the factory 14" (x7" ???) Rally II wheel but I don't know what backspacing those were.
I've only test fit them on the car as of yet and haven't done any driving. I'm replacing my rear end and going to Hotchkis tubular a-arms so I sure hope I don't have running issues in front. I am also running the Hotchkis 2" drop front springs and am installing Global West solid sub-frame bushings that also drop 1/2". In the rear I'm installing the Hotchkis leaf springs that are a 2" drop but I'll probably have to install adjustable shackles because I want the rear to be higher than the front.
Last edited by anguilla1980; 06/19/1906:15 PM.
http://www.TheFOAT.com/92GTA 1969 Pontiac Firebird w/BP 461ci stroker kit, 670 heads & XE274H cam. Primer black with black interior. 1992 Pontiac Trans Am GTA w/SLP Performance Package. Dark Jade Grey Metallic, grey leather, T-Tops.
