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going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS #2799043 07/20/20 06:03 PM 07/20/20 06:03 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack OP I Live Here
Joesixpack OP I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	OK need some new rear tires currently have a p235/70r15 on a 15x7 american 5 spoke, back space 3.5 would like to use a p275/60r15 on a 15x8 5 inch backspace 66 Belvedere I stock length 8 3/4 ss spring in stock location. what do you think? have more room now to the spring than to the wheel lip probably have to trim the wheel lip on the quarter panel as it extends in towards the tire

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799051 07/20/20 06:18 PM 07/20/20 06:18 PM
Joined: Jan 2003 Posts: 12,019 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,019 Benton, IL.	I get a better patch with 275s on 10" rims. The 8" rims pull the edges off the pavement. Have you measured how much rubber is in contact with the 235s on 8" rims? I haven't tried it, so I don't know. But my experience with the 275s is that they like the 10" rims. 235s might be happier on 8s and do as well as 275s on 8s. Master, again and still

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: DaveRS23] #2799060 07/20/20 06:48 PM 07/20/20 06:48 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack OP I Live Here
Joesixpack OP I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	there is no way to get a 10 inch rim on this car. the wheelhouse area is a lot smaller than a later b or e body

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799079 07/20/20 07:36 PM 07/20/20 07:36 PM
Joined: Jan 2003 Posts: 9,436 Blair County,PA 62maxwgn master
62maxwgn master Joined: Jan 2003 Posts: 9,436 Blair County,PA	Originally Posted by Joesixpack there is no way to get a 10 inch rim on this car. the wheelhouse area is a lot smaller than a later b or e body Exactly what I have on my 62 wagon,78 Ramcharger 15x8, 5 1/2 back spacing 3/4" from spring 1" from fender lip. Don't know how the 62 wheel opening compares with 66.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: 62maxwgn] #2799088 07/20/20 07:49 PM 07/20/20 07:49 PM
Joined: May 2019 Posts: 6,225 nowhere S Sniper master
Sniper master S Joined: May 2019 Posts: 6,225 nowhere	I think you have small wheel wells. P255/60R15's in the back of my 51. Room for much more. 295's easy, maybe even 305's if I can get the perfect backspacing.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Sniper] #2799111 07/20/20 08:17 PM 07/20/20 08:17 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack OP I Live Here
Joesixpack OP I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	66&67 Bbody have small wheel wells ,plus the shape of it is not round like a tire.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799112 07/20/20 08:18 PM 07/20/20 08:18 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack OP I Live Here
Joesixpack OP I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	15x8.5 supertrick Last edited by Joesixpack; 07/20/20 08:21 PM.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799113 07/20/20 08:19 PM 07/20/20 08:19 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack OP I Live Here
Joesixpack OP I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	15x8.5 supertrick Last edited by Joesixpack; 07/20/20 08:21 PM.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799116 07/20/20 08:21 PM 07/20/20 08:21 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack OP I Live Here
Joesixpack OP I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	same wheel

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799137 07/20/20 09:19 PM 07/20/20 09:19 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	I put a pair of the newer 15x8 torque thrusts (4.5 backspace) with 275-60x15 mastercrafts on the back of my '65 coronet. easy install and really like them.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799250 07/21/20 08:45 AM 07/21/20 08:45 AM
Joined: Jan 2003 Posts: 12,019 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,019 Benton, IL.	Originally Posted by Joesixpack there is no way to get a 10 inch rim on this car. the wheelhouse area is a lot smaller than a later b or e body I was not suggesting the 10" rims for your application. Master, again and still

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Joesixpack] #2799306 07/21/20 10:37 AM 07/21/20 10:37 AM
Joined: Jan 2003 Posts: 1,261 Phoenix, AZ B Belvedere1 pro stock
Belvedere1 pro stock B Joined: Jan 2003 Posts: 1,261 Phoenix, AZ	The 5" BS will help but a lot of it comes down to the section width of the tire. I looked at section widths as much as I did the tire size. On my 67 I'm have 15 x 8 on 4.5"BS steel wheel with M/T ET street 255/60 that fits in there nicely. A 275/60 will work with a 4.5 BS on a 7" wheel with a smaller section width but it will still be tight on the quarter panel side. These cars are very space limited as opposed to earlier and later B bodies.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Belvedere1] #2799315 07/21/20 10:57 AM 07/21/20 10:57 AM
Joined: Jan 2003 Posts: 2,094 central texas K krautrock top fuel
krautrock top fuel K Joined: Jan 2003 Posts: 2,094 central texas	Originally Posted by Belvedere1 The 5" BS will help but a lot of it comes down to the section width of the tire. I looked at section widths as much as I did the tire size. On my 67 I'm have 15 x 8 on 4.5"BS steel wheel with M/T ET street 255/60 that fits in there nicely. A 275/60 will work with a 4.5 BS on a 7" wheel with a smaller section width but it will still be tight on the quarter panel side. These cars are very space limited as opposed to earlier and later B bodies. when you say tight on the quarter panel side, is that at the lip of the wheel opening or is it where the inner wheel housing curves in towards the wheel a few inches above the wheel opening?

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Sniper] #2799337 07/21/20 12:01 PM 07/21/20 12:01 PM
Joined: Nov 2007 Posts: 21,819 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,819 Kirkland, Washington	Originally Posted by Sniper I think you have small wheel wells. P255/60R15's in the back of my 51. Room for much more. 295's easy, maybe even 305's if I can get the perfect backspacing. What the hell is wrapped around that leaf spring???

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: Pacnorthcuda] #2799362 07/21/20 12:38 PM 07/21/20 12:38 PM
Joined: Sep 2003 Posts: 19,344 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,344 north of coder	if i'm not mistaken, that is the factory "wrapping" used up to about 57 or 58 [?] that was supposed to contain a kind of grease that kept the leaves from binding against each other.

Re: going from a p235/70r15 on a 15x7 to a p275/60r15 15x8 5 BS [Re: krautrock] #2799367 07/21/20 12:50 PM 07/21/20 12:50 PM
Joined: Jan 2003 Posts: 1,261 Phoenix, AZ B Belvedere1 pro stock
Belvedere1 pro stock B Joined: Jan 2003 Posts: 1,261 Phoenix, AZ	Could be both scenarios. Its definitely tight at the wheel lip (may need trimmed) and depending on the tire height and section width of the tire it can be tight in the upper wheel house too. And, also consider the leaf spring as well. If the springs are worn and "squatty" you can run into problems there as well. I advise to go on the smaller side with tire and wheel combos if you are leaving everything in a stock configuration.

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