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315/60/15 drag radials

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Old 03-23-2008, 12:08 AM
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Default 315/60/15 drag radials

want to fit 315/60/15's with the car lowered

how much do i need to narrow the 9" rearend, what offset wheels( I think 5" back space) to fit 315/60/15 mickey thompson drag radials. I will be mini tubbing and useing offset lca's
I want the rear tires and rims to tuck inside the fenders, with the car lowered. With an approx ride height 4.5-5" off the ground.

thanks
Old 03-23-2008, 08:23 AM
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no one done this?
Old 03-23-2008, 09:28 AM
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A lot of people have done this. Use the search, it does work.

David
Old 03-23-2008, 09:42 AM
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I have, just trying get as much info as possible
Old 03-23-2008, 10:54 AM
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I have 3 3/4" narrow (with Old style BIG FORD ends...it makes a difference due to axle offset), 1/2" thick rotors (wilwoods for Big Ford), and 15x10x5

Car is down pretty far on 315/60s, limitation is the top of the minitub

Old 03-23-2008, 11:26 AM
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Originally Posted by Fireball
I have 3 3/4" narrow (with Old style BIG FORD ends...it makes a difference due to axle offset), 1/2" thick rotors (wilwoods for Big Ford), and 15x10x5

Car is down pretty far on 315/60s, limitation is the top of the minitub

thats exactly what i needed to know!
any lca bracket changes from stock? so you have wilwood brakes for old ford style big houseing ends right.
your car looks bad ***
Old 03-23-2008, 10:06 PM
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I cut 5.5" per side and run a 15x12 with a 4" back space I can lower the car as much as i want with out any issues





Old 03-23-2008, 11:02 PM
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man the dish looks awesome, what issues did you have with the lca brackets?
Old 03-24-2008, 05:59 AM
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Originally Posted by scott94z
thats exactly what i needed to know!
any lca bracket changes from stock? so you have wilwood brakes for old ford style big houseing ends right.
your car looks bad ***

stock width and stock location LCA bracket (3 3/4 is as far as you can narrow without narrowing the LCA bracket on the rear)

wilwood 140-0261 brakes. I have the big ford ends that have a 2.36" axle stickout (GM ends use a 2.81" axle stickout)
Old 03-24-2008, 07:48 AM
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so the way i understand this, is that i need the big ford ends becouse of the shorter axle offset to be able to tuck the tires fully, correct?
how much space do you have from the sidewall to the sheetmetal on the fender?
Old 03-24-2008, 08:00 AM
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Originally Posted by scott94z
so the way i understand this, is that i need the big ford ends becouse of the shorter axle offset to be able to tuck the tires fully, correct?
how much space do you have from the sidewall to the sheetmetal on the fender?
no...you don't need them...but comparing the same width rear housing built with ford ends vs GM ends would give you two different assembled rear widths...the ford version would be 0.4" shorter rotor to rotor. There are many paths to the same final result...I just told you what path I took

I had to cut my back bumper for clearance...used adj LCAs to push the tire back from the front fender...
Old 03-24-2008, 08:05 AM
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Originally Posted by scott94z
man the dish looks awesome, what issues did you have with the lca brackets?
Just narrowed them on the rear and built spacers for the front






Old 03-24-2008, 04:47 PM
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looks good, lots of great pics on this thread!
keep em commin!
Old 03-25-2008, 12:37 AM
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Finally, some pictures of what people have been talking about forever.
Old 03-25-2008, 06:34 AM
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next question,
who have built there own reaend housings, what problems have they run into? what did you use for a jig for the brackets?
Old 05-14-2008, 06:29 PM
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Does the driver side spring bracket with the panahard rod get in the way of the tire??
I'm assuming that every one has cut off the stock brackets an used or modded them to work for this
Old 05-14-2008, 06:35 PM
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Here are mine.

Minitubbed, 5.5" BS, narrowed 3.75" per side. offset lower control arms.

29.5w's



315/60/15

Old 05-14-2008, 06:43 PM
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Originally Posted by Juiced
Here are mine.

Minitubbed, 5.5" BS, narrowed 3.75" per side. offset lower control arms.

29.5w's



315/60/15

Any details on the exact mods to make this work?
your car looks SICK!
Old 05-14-2008, 06:50 PM
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Originally Posted by scott94z
Any details on the exact mods to make this work?
your car looks SICK!
Thanks,

I have a full minitub with 2.5" wide 10" afco springs and adjustable cups, narrowed LCA brackets, Offset Lower control arms with the front moved to the inside of the subframe with custom bracket. Madman Shock relocation and the bottom of the shock tabs have been removed. With a 5" or 4.5" BS wheel i could have saved myself a lot of headaches. Check with your local Custom hotrod/wheel shop to see if the have the wheel fitment tool so you get the right spec'd wheel.

I did the same thing fireball did i just rolled the inside of the front fender and beat on the inside with a BFH and cut the rear of the bumper to make it fit properly.
Old 05-14-2008, 07:19 PM
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40" tub, lower it till the suspension bottoms out and everything hits the floor Then cut it all out before you even drive the car and go tube frame big tire
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