The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-26-2017, 09:17 PM   #1
jim-bob
Registered User
 
Join Date: Apr 2011
Location: brooks,georgia
Posts: 674
Do These Two Wheel Dimensions ....

...put the tire in same position in fender well? All the measurements are the same except
one wheel has neg12mm off-set with 4" back space..the other has 0 off-set with 4.50 back space..If not, which wheel will put more tire toward the curb?
jim-bob is offline   Reply With Quote
Old 01-26-2017, 09:21 PM   #2
Kennuck
Registered User
 
Kennuck's Avatar
 
Join Date: Oct 2013
Location: Dresden, Ontario
Posts: 647
Re: Do These Two Wheel Dimensions ....

depends on the wheel width
__________________
1970 Short Wide
5.3 4L60E BlackBear tune
3:73 gears, Boyd's Tank
2.5 / 4 drop 5 lug disc brakes
Vintage Air
18x8 Ridlers 255/55 frt. 18x9.5 275/60 rear
Kennuck is offline   Reply With Quote
Old 01-26-2017, 09:25 PM   #3
jim-bob
Registered User
 
Join Date: Apr 2011
Location: brooks,georgia
Posts: 674
Re: Do These Two Wheel Dimensions ....

wheel drawing with -12mm off-set with 4" back space..If you move the mounting plate to 0 off-set won't that give you 4.50" back space?
Attached Images
 
jim-bob is offline   Reply With Quote
Old 01-26-2017, 09:31 PM   #4
jim-bob
Registered User
 
Join Date: Apr 2011
Location: brooks,georgia
Posts: 674
Re: Do These Two Wheel Dimensions ....

Quote:
Originally Posted by Kennuck View Post
depends on the wheel width
why? i said both wheels are the same except the o/s and b/s
jim-bob is offline   Reply With Quote
Old 01-26-2017, 10:09 PM   #5
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,731
Re: Do These Two Wheel Dimensions ....

Quote:
Originally Posted by jim-bob View Post
...put the tire in same position in fender well? All the measurements are the same except
one wheel has neg12mm off-set with 4" back space..the other has 0 off-set with 4.50 back space..If not, which wheel will put more tire toward the curb?
The one with less backspace.
geezer#99 is offline   Reply With Quote
Old 01-26-2017, 10:13 PM   #6
Kennuck
Registered User
 
Kennuck's Avatar
 
Join Date: Oct 2013
Location: Dresden, Ontario
Posts: 647
Re: Do These Two Wheel Dimensions ....

I misunderstood your question. The 4.0 backspace will put more tire to the curb.
__________________
1970 Short Wide
5.3 4L60E BlackBear tune
3:73 gears, Boyd's Tank
2.5 / 4 drop 5 lug disc brakes
Vintage Air
18x8 Ridlers 255/55 frt. 18x9.5 275/60 rear
Kennuck is offline   Reply With Quote
Old 01-27-2017, 12:38 PM   #7
raggedjim
Senior Member
 
raggedjim's Avatar
 
Join Date: Jun 2002
Location: Murray, Kentucky
Posts: 3,476
Re: Do These Two Wheel Dimensions ....

Actually the negative offset on the smaller backspace will put the outside edge pretty close to the other. I think they will be so close you won't notice a difference.

If both had zero offset then the 4 back space would move the outer lip out, but negative offset of 12mm (a bit smaller than .5) will pull the outer lip back in.

Rg
__________________
Roger

'68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675
'69 ('70?) 2wd Blazer
'70 GMC Jimmy 2wd
'73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203
raggedjim is online now   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:08 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com