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-   -   20x10 in wheels in back? (https://67-72chevytrucks.com/vboard/showthread.php?t=298855)

1moretoy 07-10-2008 02:51 PM

20x10 in wheels in back?
 
how much will i have to narrow my rearend on my 70 chevy stepside to run a 20x10 in wheel with a 3 in backspace. im trying to get a deep dish on it. also want to run 18's in the front what measurements do i need. thanks for any help

jasonb72 07-10-2008 03:48 PM

Re: 20x10 in wheels in back?
 
depends on the size tire, but I have measured I will be narrowing mine about 2" overall to get my 20x10 4" BS with a 315 35 20 on it. I am also going to be tubing the bed side some so I can keep the wheel as flush with the wheel opening as possible.

1moretoy 07-10-2008 05:05 PM

Re: 20x10 in wheels in back?
 
yea i want mine flush as well and will be tubing it

lolife99 07-10-2008 05:33 PM

Re: 20x10 in wheels in back?
 
I suggest you buy the wheels and tires,... AND THEN,... measure for the new narrowed rearend. That's the only way to get it right. Just my opinion.

lyrikz 07-10-2008 06:36 PM

Re: 20x10 in wheels in back?
 
Quote:

Originally Posted by 1moretoy (Post 2800976)
how much will i have to narrow my rearend on my 70 chevy stepside to run a 20x10 in wheel with a 3 in backspace. im trying to get a deep dish on it. also want to run 18's in the front what measurements do i need. thanks for any help

20x10 with 5" backspacing.. Check my sig... NOthings narrowed.. Fits perfect. no rubbing, and im bagged in the rear.

Ackattack 07-10-2008 07:19 PM

Re: 20x10 in wheels in back?
 
I'm also going to be running 20x10s with 315/35/20s and I'm planning on tubing the fenders. However, I'm not planning on narrowing the rearend, so I won't have as much of a "dish".

BigSky71 07-11-2008 02:37 PM

Re: 20x10 in wheels in back?
 
4 Attachment(s)
I installed a less wide rearend in my truck in order to run 20x10 TTIIs with 3" backspacing. My F*rd 9" is from an early Bronco and is 58.75" from outside of drum to outside of drum. IIRC the stock rearend in 70 is right at 64" wide, so you need to take of a little over 2.5" on each side.

With this setup my 315/35/20 Toyos are about 1/4" from hitting the inside of the bedside when airred out, so I think the 58.75" is a good maximum width. I tubbed my wheel wells 5.5", or basically to the next rib in the steel bed floor, although it was probably not necessary. I now could run like a 20x14 wheel if my checkbook was bigger... anyway here are some photos in no particular order.

randomhero472 07-14-2008 01:04 AM

Re: 20x10 in wheels in back?
 
damn bigsky... your truck gives me motivation big time! If it wasnt 12:15 i'd head out to the garage right now.. hows the truck treating ya?

BigSky71 07-14-2008 11:06 AM

Re: 20x10 in wheels in back?
 
Quote:

Originally Posted by randomhero472 (Post 2805094)
hows the truck treating ya?

Well I have been cleaning up a few details here and there, and driving it a little. I have about 1,300 miles on it since putting it back together last fall. I have about five or six little things left on my finish list, so I still get some garage time. Not sure what I will do when its done... been sorta looking for another truck!

hensonjd 07-14-2008 03:10 PM

Re: 20x10 in wheels in back?
 
What is the biggest tire you can put on a 5 inch lowered 70 stepside.

abadsvt 07-14-2008 08:12 PM

Re: 20x10 in wheels in back?
 
On a 70 and newer rear end I could not fit a 20x10 with 4.5" backspace. The tire size is 275/30/20. I had maybe an 1/8" perside if i was lucky. I am going to swap to a pre 70 rear end and i should be fine. If my measurements come out to what they should be i should have 3/4" +or- 1/8" per side. That is just my experience though.

Josh

ps. BigSky71 your truck is beautiful!!!!! Very well done!

1moretoy 07-14-2008 08:55 PM

Re: 20x10 in wheels in back?
 
what backspacing should i get in the front. i want to run 18x8

1moretoy 07-18-2008 11:45 AM

Re: 20x10 in wheels in back?
 
what backspace should i get for the front ?


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