View Full Version : 69 Camaro RS/SS wheel backspace
Hello I am new to this forum and was wondering if anyone knew if a 245-45-18 or 245-40-18 would fit on the front of a stock suspension 69 big block camaro..And what backspacing to use?? I have already figured out I can get a 275-40-18 on the back but cant get the front figured. Thanks for the help!!
buickfunnycar.com
02-19-2008, 10:02 AM
Both those will work perfectly on the front of your '69.I'm sure several other wheel experts will chime in here.
As far a b/s is concerned,a 4.75" or 4.875" b/s will work nicely on an 8" wide wheel.5" will work fine as well,you'll need to measure however since every one of these cars are slightly different.
On the rears,a 5.5" b/s on a 9.5" wide wheel should be fine with either 275/40's or 285/40's.
gmjj13
02-19-2008, 10:17 AM
you'll have no problem with those sizes, i'm running 245/40-18 on the front with a 2" drop and have no issues...
Thanks to all for the reply,but the problem I am now faced with is that I want to use the billet speciaties Vintec Dish wheels but the max bacspacing on a 18 x 8 wheel is 4.5" does anyone know what size tire I can use with that backspacing?
I would appreaciate any help I can get Thanks!!!
class67
02-20-2008, 11:43 AM
A 245/40/18 is a good fit!!!
Sorry to be redundant but i want to make sure that a 245/40/18 will fit with a 4.5" backspacing on the front?????
Tony
Boulder69
02-20-2008, 03:41 PM
Your gonna rub some stuff with that backspace. You really need that 4.75 - 4.875 backspace on an 8" wheel.
buickfunnycar.com
02-20-2008, 04:38 PM
Your gonna rub some stuff with that backspace. You really need that 4.75 - 4.875 backspace on an 8" wheel.
Correct.No matter what size tire,4.5" b/s will be very tight...expect rubbing.
6'9"Witha69
02-20-2008, 05:15 PM
I have no issues other than with the frame at full lock running 17x8 with 4.5 bs and 245/45/17.
Oh Well here we go again. Does anyone know if this will work???
I know I can get 275/40/18 on the back with a 5.5" backspace. My big problem is that the wheels I like are B.S. Vintec dish,but they only come with a 4.5 backspace on a 8" or 7" wheel so my question is can I get a 245/40/17 or 18 on a 7" wide wheel with only a 4.5" backspace??Sorry to be a P.I.T.A and thanks to all for any help
Tony
buickfunnycar.com
02-22-2008, 02:57 PM
No PITA man,you know the drill...measure twice,cut once.
I wouldn't run a 7" wide wheel in front,you won't be happy...trust me.
As was mentioned,an 8" wheel w/4.5" of b/s will work...but it'll be tight.
I have that same combo on one set of wheels for my Z/28's but every car is different.Mine clears easily except for complete lock-to-lock.You'll need to measure closely and your suspension has to be firm to pull this off.
I honestly think you'll be more happier with a 45-series tire in front and save the 40's for the rears.
yeah, I'd go 45 series up front as well like MC John said.
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