Need info on wheels size. Please - TriFive.com, 1955 Chevy 1956 chevy 1957 Chevy Forum , Talk about your 55 chevy 56 chevy 57 chevy - Belair , 210, 150 sedans , Nomads and Trucks, Research, Free Tech Advice

Black56 · 10-02-2008, 08:05 PM

Going to be doing my 2" suspension drop in a couple weeks. Im planning on putting some Intro 17" wheels on the 56. Except for the 2" drop all else is stock. I read 1 post that said 17x7 with a 4.5" BS.and a 225 tire is a good fit for the front. Is this correct? 2nd what is the max tire size for the rear and what should the backspace for the wheel be? Could I use a 17x8" for the rear? I do not want rubbing to be an issue. Thanks guys!

Rick_L · 10-02-2008, 08:31 PM

If you have dropped spindles the 4.5" backspace on the 17x7 is good. If you have stock drum brakes 4" backspace will work. If you have stock spindles and a disc conversion then a 17x7 probably won't work at all. The 225 tire is a good choice.

On the back you can fit a 275 tire if you do the backspacing exactly right, and your car's body and frame are aligned correctly, etc. A 255 tire is a more conservative choice.

Black56 · 10-02-2008, 08:42 PM

Quote:

Originally Posted by Rick_L

If you have dropped spindles the 4.5" backspace on the 17x7 is good. If you have stock drum brakes 4" backspace will work. If you have stock spindles and a disc conversion then a 17x7 probably won't work at all. The 225 tire is a good choice.

On the back you can fit a 275 tire if you do the backspacing exactly right, and your car's body and frame are aligned correctly, etc. A 255 tire is a more conservative choice.

Thanks for the info Rick. The fronts are Heidts 2" drop spindles. I dont think they set the wheels out more than 3/8" So I assuming an 8" rim with 4.5" bs is the norm on the rear as well?

56Mark · 10-02-2008, 08:43 PM

Rick,
Why won't a 17 x 7 work with stock spindles and disc brakes? Just curious because that is what I have and I haven't decided on what wheels I want to run.
Thanks

Black56 · 10-02-2008, 08:49 PM

Quote:

Originally Posted by 56Mark

Rick,
Why won't a 17 x 7 work with stock spindles and disc brakes? Just curious because that is what I have and I haven't decided on what wheels I want to run.
Thanks

I think maybe because stock spindels with rotors set the wheels out about an inch per side. I think anyways. Thats what I have now is stock spindels with disks. I really dislike the way it set my wheels out and hurt my turning radius. So Im changing the spindels. Ive always wanted to lower mine. After seeing some of the lowerd car pics here with billet wheels Im sold I love the way they look.

Rick_L · 10-02-2008, 09:42 PM

56mark, black56 summed it up pretty well. Your tires are going to rub with that setup, even worse if the car is lowered, for the reasons he stated. They don't make wheels with enough backspace to fix it.

56Mark · 10-02-2008, 10:41 PM

I haven't put the disc brakes on yet and I think they are only supposed to set the wheels out about 3/8". So, if they do set out more than that, what you are saying is that the dropped spindles will get it back to little or no offset? Will the disc brake parts transfer to the dropped spindles? They are basically the same set up as the stock spindle set up from CPP with the large GM calipers. http://www.classicperform.com/Store/...s/5564WBKS.htm I'm glad I saw this thread since I haven't put them on yet and I don't want the wheels set out. I think I can live with 3/8", but if it works out to be 1", I will use the dropped spindles or a different set up.
Thanks again!

Tom$lick · 10-02-2008, 10:47 PM

I have a 57, disc brake conversion from CPP, 2in drop spindles AND 1.5in drop springs in front. I'm running a 17x8 with a 5.25 backspace, 235/45 tire. I haven't trimmed the fender lip at all and I rarely scrub even at full lock. I still have the factory stops on the front too. Out back, stock wheel wells. 1in drop leafs, 2in blocks. 17x9 with a 5.25 backspace, 255/45 tire. It's tight but there's a little wiggle room. Wheels are FOOSE Legends.

Tom

Black56 · 10-02-2008, 10:48 PM

I did a little research on this and Im pretty sure that if you use a stock spindel the only rotor that you can use is the old Chevelle rotors. When you put those rotors on the stock spindel it will always move the wheels out the same for you, me or anyone that does it. I know mine moved the wheels out almost 1" per side, and killed my turning radius. The brakes work fine. But for me personally im not satisfied with that. I could have this all wrong but I think im correct.

Black56 · 10-02-2008, 10:50 PM

Quote:

Originally Posted by Tom$lick

I have a 57, disc brake conversion from CPP, 2in drop spindles AND 1.5in drop springs in front. I'm running a 17x8 with a 5.25 backspace, 235/45 tire. I haven't trimmed the fender lip at all and I rarely scrub even at full lock. I still have the factory stops on the front too. Out back, stock wheel wells. 1in drop leafs, 2in blocks. 17x9 with a 5.25 backspace, 255/45 tire. It's tight but there's a little wiggle room. Wheels are FOOSE Legends.

Tom

Wow Tom I bet that baby is on the ground! Do you have any pictures? Does it scrub on everything being that low? Thanks

10-02-2008, 08:05 PM	#1
Black56 Senior Member Join Date: Mar 2008 Black56's Garage Location: Johnson City TN Posts: 237 Member #5192	Need info on wheels size. Please Going to be doing my 2" suspension drop in a couple weeks. Im planning on putting some Intro 17" wheels on the 56. Except for the 2" drop all else is stock. I read 1 post that said 17x7 with a 4.5" BS.and a 225 tire is a good fit for the front. Is this correct? 2nd what is the max tire size for the rear and what should the backspace for the wheel be? Could I use a 17x8" for the rear? I do not want rubbing to be an issue. Thanks guys! __________________ 56 2 door post. 265 200r4. " A stupid question is better than a stupid mistake."

10-02-2008, 08:43 PM	#4
56Mark Senior Member 1 Silver Star Join Date: Jun 2008 56Mark's Garage Location: Kingsport, Tennessee Posts: 931 Member #5675	Rick, Why won't a 17 x 7 work with stock spindles and disc brakes? Just curious because that is what I have and I haven't decided on what wheels I want to run. Thanks __________________ 56-210 2 dr sedan Mark

10-02-2008, 10:41 PM	#7
56Mark Senior Member 1 Silver Star Join Date: Jun 2008 56Mark's Garage Location: Kingsport, Tennessee Posts: 931 Member #5675	I haven't put the disc brakes on yet and I think they are only supposed to set the wheels out about 3/8". So, if they do set out more than that, what you are saying is that the dropped spindles will get it back to little or no offset? Will the disc brake parts transfer to the dropped spindles? They are basically the same set up as the stock spindle set up from CPP with the large GM calipers. http://www.classicperform.com/Store/...s/5564WBKS.htm I'm glad I saw this thread since I haven't put them on yet and I don't want the wheels set out. I think I can live with 3/8", but if it works out to be 1", I will use the dropped spindles or a different set up. Thanks again! __________________ 56-210 2 dr sedan Mark

10-02-2008, 10:48 PM	#9
Black56 Senior Member Join Date: Mar 2008 Black56's Garage Location: Johnson City TN Posts: 237 Member #5192	I did a little research on this and Im pretty sure that if you use a stock spindel the only rotor that you can use is the old Chevelle rotors. When you put those rotors on the stock spindel it will always move the wheels out the same for you, me or anyone that does it. I know mine moved the wheels out almost 1" per side, and killed my turning radius. The brakes work fine. But for me personally im not satisfied with that. I could have this all wrong but I think im correct. __________________ 56 2 door post. 265 200r4. " A stupid question is better than a stupid mistake."

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10-02-2008, 08:31 PM	#2
Rick_L Trifive Leaders Club Join Date: Mar 2007 Rick_L's Garage Location: Katy, TX Posts: 20,309 Member #2256	If you have dropped spindles the 4.5" backspace on the 17x7 is good. If you have stock drum brakes 4" backspace will work. If you have stock spindles and a disc conversion then a 17x7 probably won't work at all. The 225 tire is a good choice. On the back you can fit a 275 tire if you do the backspacing exactly right, and your car's body and frame are aligned correctly, etc. A 255 tire is a more conservative choice.

10-02-2008, 09:42 PM	#6
Rick_L Trifive Leaders Club Join Date: Mar 2007 Rick_L's Garage Location: Katy, TX Posts: 20,309 Member #2256	56mark, black56 summed it up pretty well. Your tires are going to rub with that setup, even worse if the car is lowered, for the reasons he stated. They don't make wheels with enough backspace to fix it.

10-02-2008, 10:47 PM	#8
Tom$lick Senior Member Join Date: Jul 2007 Tom$lick's Garage Location: Hillensberg, Germany Posts: 168 Member #3074	I have a 57, disc brake conversion from CPP, 2in drop spindles AND 1.5in drop springs in front. I'm running a 17x8 with a 5.25 backspace, 235/45 tire. I haven't trimmed the fender lip at all and I rarely scrub even at full lock. I still have the factory stops on the front too. Out back, stock wheel wells. 1in drop leafs, 2in blocks. 17x9 with a 5.25 backspace, 255/45 tire. It's tight but there's a little wiggle room. Wheels are FOOSE Legends. Tom

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