20" rim on front. 22" on rear. 120.65 to 120 comparison. '86gp

hi,
i'm new to the gbody forum and would like to introduce myself and say hello to everybody.

i have a modified 1986 pontiac grand prix. fellow member 'qdub24' has been helping me and has been great. he advised me to ask the forum about my question.
i need to reach out to someone who has put a 20" rim on the front of one of these cars. i need to know about the proximity of the rim and the tie rod ends. with a 16" rim they are very close. i need to know what happens at 20". do they go over the tie rod end, as i have read or what? i don't care about car body height or tire width/height or lug bolt patterns .... just hypothetically ... if you take a 20" (or another big wheel) and placed it on the lugs what would happen near the tie rod ends and upper control arm. i'll figure out the backspacing myself. i need advice from someone that has seen this stuff themselves and has experience with these big wheels.

thank you to everyone. it is great to be with my new gbody family.

hi,
thank you for my replies.

thank you texas82gp for my welcome. what a beautiful red gp.

thank you crucial118. your photos were inspiring. i can see how things are on yours and i'm studying your tire sizes. fantastic. it was just what i needed. i'm attaching a photo of the inside of my front drivers side wheel (sorry for all the surface rust). i run really low. that's why the control arm is so straight. driving height is about 4" under the front crossmember. i'm on a firestone air bag suspension.



thank you ungn. your a true brother. my car is a little bit of both of your cars rolled up into one.
i'm a 1986 grand prix le with a 2+2 nose and a worked 1987 turbo buick drivetrain. yours is beautiful mine is a 'rat' type. everything is primed.

let me give an idea of where i am and where i'm going and what i expect to look like when i get there.
now: (american racing. circa - 1995)
i'm running 255x16 on 8.5" rims with 4.75" backspace and 10.25" section width in the rear and 225x15 on 7" rims with 4" backspace and a 9" section width in the front.
new:
the new rear rim is 22"x9.5" and will have around 4.5" backspace.
and the new front rim is 20"x8.5" with an 'i'm not sure yet' backspace.

i cut out cardbord circles at 22" and 20" and attached them to my tires and took a photo. then i grabed an image of my new rims off ebay and roughly graphic'ed them on my photo. it's crude but exactly correct with 2.5 inch sidewall on the tires.

photos are hard for me now. snow is coming and i'm getting ready.