Author Topic: 15" minilite  (Read 636 times)

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Offline Kjartan75

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15" minilite
« on: July 12, 2018, 07:17:22 am »
Hi, anyone know how wide and backspase that will fit a 69 boss? Tyresize? Want to fill up max at the rear..
Regards from Norway
1969 boss 302
1970 grande

Offline Gazman

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Re: 15" minilite
« Reply #1 on: July 12, 2018, 08:35:25 pm »
I have them on my 70 Boss and the back space is 4 1/2 inches and I use 245-60-15 looks good and I am lowered 1 1/2 inches all round.

Offline Kjartan75

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Re: 15" minilite
« Reply #2 on: July 12, 2018, 11:33:19 pm »
How wide?
1969 boss 302
1970 grande

Offline Gazman

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Re: 15" minilite
« Reply #3 on: July 13, 2018, 09:14:50 pm »
8 Inches wide

Offline Kjartan75

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Re: 15" minilite
« Reply #4 on: July 14, 2018, 03:23:30 am »
Thanks 👍
1969 boss 302
1970 grande

Offline Kjartan75

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Re: 15" minilite
« Reply #5 on: July 15, 2018, 09:48:42 am »
Are there space for 9" and 4,5" bs at the rear? At summit Racing they suggested 7-8x15 with 4" bs front and 4,5" bs rear.
Regards Kjartan
1969 boss 302
1970 grande

Offline Gazman

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Re: 15" minilite
« Reply #6 on: July 16, 2018, 06:52:09 pm »
Mine are 8 inch all round and fill the fenders, with a full tank of fuel and 2 people it can slightly rub on the rears if you hit a bump, and I have rolled the rear fenders. I don't think 9 inch will fit with 4 1/2 back space.

Offline Moonshiner

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Re: 15" minilite
« Reply #7 on: July 16, 2018, 10:40:39 pm »
Hi Gazman, any chance of putting up a picture of your car?

Offline Gazman

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Re: 15" minilite
« Reply #8 on: July 16, 2018, 11:28:40 pm »
Sure.... enjoy

Offline Clifford

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Re: 15" minilite
« Reply #9 on: July 17, 2018, 06:47:46 am »
Are there space for 9" and 4,5" bs at the rear? At summit Racing they suggested 7-8x15 with 4" bs front and 4,5" bs rear.
Regards Kjartan

All four items are important. Tire size, wheel width, wheel diameter, and wheel back spacing are all factors.

You can fit larger/wider tires in the rear than you can the front.  So if you want larger tires in the front than the rear you can do it. If you want all 4 tires and wheels to be the same size then you need to concentrate on what you can fit on the front and then the rear should be no problem.

I suggest you stick with recommendations from other BOSS 302 owners who are already running the tires and wheels they are suggesting. Their tires and wheels fit!

Tire and wheel recommendations from companies that have products to sell you my be well-meaning, but their job is to sell parts.
The Big Red Dog

Offline TXBoss302

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Re: 15" minilite
« Reply #10 on: July 17, 2018, 01:16:41 pm »
If you're dead set on something wider in the rear... you can swap out your rear end housing and go with a earlier 9" or have a custom housing with axles made. Gives you a little more flexibility. If I recall, the 69-70 housing width is around 60" and the 65-66 is 58". Someone will correct me if I'm wrong.

This is what I did when I put a full floater rear end in the back. Gives me a little more flexibility on wheel tire combos.

Anyways... something to think about.
« Last Edit: July 17, 2018, 08:45:48 pm by TXBoss302 »
69 Yellow Boss 302... Sooooooooooooo Close... Again

Online crossboss

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Re: 15" minilite
« Reply #11 on: July 17, 2018, 01:57:35 pm »
On my '70 Boss 302 T/A car I used the 1965 width 9" rear housing (2" narrower), with 9.5 inch wheels. Sorry, forgot the backspacing measurements. Tires were the Goodyear blue streaks. Here is a picture of my car for a reference.
Click on pic to enlarge.
<My old heap Boss 302…aka S-B Racing!

Current lifelong project:
1969 Mustang Fastback/FOX chassis, 6 speed, 4 wheel discs, with a modern Can-Am 494 (Boss 429), Kaase headed, intake mounted with a 1425 cfm 'B' Autolite Inline carb, ala Trans-Am style…Whew!

Offline 70BossTA

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Re: 15" minilite
« Reply #12 on: July 17, 2018, 02:06:54 pm »
AWESOME!!  Now that is the way a BOSS 302 should look!!!   THX.  You made my day!!
Previously owned: 
SFM5S271  65 Shelby (B/P)
#16 - Peter Gregg 1971-1 BM T/A team Mustang
0F02G157794 Second owner - (Grabber Orange)

Online crossboss

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Re: 15" minilite
« Reply #13 on: July 17, 2018, 02:14:28 pm »
AWESOME!!  Now that is the way a BOSS 302 should look!!!   THX.  You made my day!!


Your welcome!
<My old heap Boss 302…aka S-B Racing!

Current lifelong project:
1969 Mustang Fastback/FOX chassis, 6 speed, 4 wheel discs, with a modern Can-Am 494 (Boss 429), Kaase headed, intake mounted with a 1425 cfm 'B' Autolite Inline carb, ala Trans-Am style…Whew!

Offline Moonshiner

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Re: 15" minilite
« Reply #14 on: July 18, 2018, 12:31:22 am »
Thanks for the pics Gazman. I did enjoy very much.
I'm a long way off needing to select new wheels for my BOSS........ +1 on Clifford comments.
Personally I like the look of a lowered BOSS so will probably go 8" all round and not to wide on the tyres so I can lower it without clearance issues and without having to butcher the underside of the car to get large tyres to fit.
I like the stance of 69MustangMikes car under the "lowering the BOSS" topic.
IMHO....