Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If you get on tire rack they will show what manufacturers recommend on safe rim widths for any particular tire. Most large tire shops will not go outside of these recommendations do to liability issues.
18X9.5 with -12mm of offset or 4.75" of backspacing. With wilwood brakes it pushed the wheels out 1/4" each size. I wish I would have gotten -6mm offset for the front. With stock brakes or disks that do not push out your track with the -12MM on 9.5" wide rim will work great. I am running a...
Call Summit racing and ask about the Cragars. They will give you the Cragar tech line number and you can ask them what is the minimum backspacing they can make for you. You can order them through Summit once you get everything figured out.
I use this.
- - - Updated - - -
Cragar SS all aluminum 612 in -12MM offset in 18X9.5 front and rear with 265x35x18 front and 285x35x18 rear. If the Wilwood brakes would not have pushed the rim out 1/2 and inch I could have gone with 285x35x18 front and rear. Granted the 285 leaves too much...
I think you are going to have to narrow your rims. You should have about 1/2" clerance around the tires. You can do some research and play around with tire size calculators to help guide a decision on how wide of a tire on what size rim to determin how much width you need to take out of the rims...
I called and was looking at running some 15's from him but just waited and upgraded my wheels and tires at the same time as my brake upgrade. When I was looking someone else had recomended him for me. If I would have purchased them from him I would have just driven up the highway a couple of...
Are they the style you want? If not the question of fitment is mute. If they are what you like it may be worth a shot.
+18 offset on a 9" wide rim is between 5.5 and 5.75 backspacing and may not fit on the front.
You have to look at the height of the side wall. Check out a 15X10 with 5" of backspacing with 295/60/15 on it. Then compare that to a 18X10 with 5" of backspacing and a 325/35/18. With the shorter side wall you need less clerance to account for tire flex.
I have no idea. Look around here for simiar B body plymouths from 68-70 and see what everyone is running. Once you get a few together with the same suspension you have (stock I assume) you can play with the calculator to see where your backspacing needs to be.
You will be able to find plenty of people here that have large tires on 15" rims here. Use their backspacing and tires sizes and play with backspacing or offset with a calculator like the one linked below.
http://www.rimsntires.com/specspro.jsp
Material does not change back spacing. I would look up the weight of the steel wheels. Yet are bound to be pretty heavy which will hurt braking. It will also hurt acceleration but most of us don't have an issue with not enough torque.