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 07-11-2018, 01:17 PM   #1
Taylor21293
Registered User
 
Taylor21293's Avatar
 
Join Date: Jun 2012
Location: Simi Valley, CA
Posts: 54
Wheel & Tire Size with a 3.5/5 Drop?

I have a 1971 GMC C1500 Long bed, rear coil suspension. Iím looking into getting the ECE 3.5/5 Drop kit, but Iíd like to run 20x8 smoothie wheels from Detroit Steel Wheels. Iím not quite sure if I could get away with running 20x9s, or if 20x8s will work. Iím also torn between what size tires I should go with. I definitely like the ďlow profileĒ look, but Iím not sure if a 40 profile tire will be too little. I appreciate any pictures/help with this!
__________________
Eatin' up Dodges and ****tin' out Fords
Taylor21293 is offline   Reply With Quote
Old 07-11-2018, 01:23 PM   #2
Taylor21293
Registered User
 
Taylor21293's Avatar
 
Join Date: Jun 2012
Location: Simi Valley, CA
Posts: 54
Re: Wheel & Tire Size with a 3.5/5 Drop?

This is the most recent picture I have of her, Iím not even entirely sure what level of drop the truck has (I bought it like that), and itís been sitting up in Sacramento for the last 4 years since I moved to Southern California. I was rented the opportunity to finally bring it down here with me, so I got the muscle bug workin inside of me and Iím getting everything lined up so when I DO a get it here, I can jump in and start getting her back on the road
Attached Images
 
__________________
Eatin' up Dodges and ****tin' out Fords
Taylor21293 is offline   Reply With Quote
Old 07-11-2018, 01:58 PM   #3
rjs53
Registered User
 
Join Date: Jan 2010
Location: nevada
Posts: 345
Re: Wheel & Tire Size with a 3.5/5 Drop?

A lot of people on this site are running 20x10 rear and 20x9 in front. The rears easy to find. Put jack stand under axle, pull the wheel put a straight edge on the drum and measure from face of drum to outer wheel well lip and to frame. Remember 3/4Ē is about the least amount of clearance you want from rubbing.
This will help with backspace, donít forget section width of tire also
__________________
2003 Dodge 2500
1969 C10
2014 Camaro SS/RS/1LE
rjs53 is offline   Reply With Quote
Old 07-11-2018, 02:35 PM   #4
88gtstreetrod
Registered User
 
Join Date: May 2018
Location: Atlanta, GA
Posts: 45
Re: Wheel & Tire Size with a 3.5/5 Drop?

I have a 71 gmc. Has a 5/5 drop. Running 20x10 5.5 backspacing with 1 inch spacer on rear and 20x9 4.5 backspacing. I have plenty of room
88gtstreetrod is offline   Reply With Quote
Old 07-12-2018, 08:37 AM   #5
Taylor21293
Registered User
 
Taylor21293's Avatar
 
Join Date: Jun 2012
Location: Simi Valley, CA
Posts: 54
Re: Wheel & Tire Size with a 3.5/5 Drop?

Quote:
Originally Posted by 88gtstreetrod View Post
I have a 71 gmc. Has a 5/5 drop. Running 20x10 5.5 backspacing with 1 inch spacer on rear and 20x9 4.5 backspacing. I have plenty of room
So you didnít have to run your rear end, correct? Do you have any pics by chance?
__________________
Eatin' up Dodges and ****tin' out Fords
Taylor21293 is offline   Reply With Quote
Old 07-12-2018, 08:40 AM   #6
Taylor21293
Registered User
 
Taylor21293's Avatar
 
Join Date: Jun 2012
Location: Simi Valley, CA
Posts: 54
Re: Wheel & Tire Size with a 3.5/5 Drop?

Quote:
Originally Posted by 88gtstreetrod View Post
I have a 71 gmc. Has a 5/5 drop. Running 20x10 5.5 backspacing with 1 inch spacer on rear and 20x9 4.5 backspacing. I have plenty of room
Never mind haha, just found your introduction thread you posted, that thing is badass!
__________________
Eatin' up Dodges and ****tin' out Fords
Taylor21293 is offline   Reply With Quote
Old 07-12-2018, 08:45 AM   #7
Dwyert4
Registered User
 
Join Date: Apr 2017
Location: Auburndale
Posts: 77
Re: Wheel & Tire Size with a 3.5/5 Drop?

I have a 70 long bed that has 22x9 transport wheels. I have a 3.5" on front and 4 in rear. 1" spacers for the rears. Tires are 265/35 and have plenty of room. I did 2 1/2 drop spindles disc brake conversion on front plus 1" drop spring and 4" coil in rear. Drives great and no rubbing.
Attached Images
 
Dwyert4 is offline   Reply With Quote
Old 07-12-2018, 08:48 AM   #8
Dwyert4
Registered User
 
Join Date: Apr 2017
Location: Auburndale
Posts: 77
Re: Wheel & Tire Size with a 3.5/5 Drop?

Thinking of going 5" in rear.
Dwyert4 is offline   Reply With Quote
Old 07-13-2018, 08:41 AM   #9
Taylor21293
Registered User
 
Taylor21293's Avatar
 
Join Date: Jun 2012
Location: Simi Valley, CA
Posts: 54
Re: Wheel & Tire Size with a 3.5/5 Drop?

Quote:
Originally Posted by Dwyert4 View Post
I have a 70 long bed that has 22x9 transport wheels. I have a 3.5" on front and 4 in rear. 1" spacers for the rears. Tires are 265/35 and have plenty of room. I did 2 1/2 drop spindles disc brake conversion on front plus 1" drop spring and 4" coil in rear. Drives great and no rubbing.
Beautiful truck! Thatís awesome that you can fit 22s in there, they fit nicely on that truck
__________________
Eatin' up Dodges and ****tin' out Fords
Taylor21293 is offline   Reply With Quote
Old 07-13-2018, 08:44 AM   #10
Dwyert4
Registered User
 
Join Date: Apr 2017
Location: Auburndale
Posts: 77
Re: Wheel & Tire Size with a 3.5/5 Drop?

Thanks man I appreciate it. Now what color and finish.
Dwyert4 is offline   Reply With Quote
Old 07-13-2018, 01:29 PM   #11
saon
Registered User
 
Join Date: Feb 2016
Location: indiana
Posts: 19
Re: Wheel & Tire Size with a 3.5/5 Drop?

Dwyert4
what did you use for a drop kit and a brake swap?
im looking to buy something soon and cant decide who or what or if I want to do a 73+ swap then piece it together.
saon is online now   Reply With Quote
Old 07-13-2018, 02:56 PM   #12
Dwyert4
Registered User
 
Join Date: Apr 2017
Location: Auburndale
Posts: 77
Re: Wheel & Tire Size with a 3.5/5 Drop?

21/2 western chassis kit. Comes with everything needed. Springs also western chassis. Kit came with the truck when I bought it. I just had it done a couple months ago. Its my daily and i love the ride.
Dwyert4 is offline   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 07:36 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com