12" wheels Backspacing HELP ASAP!

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Nov 24, 2011 | 10:32 AM

Blake01SS

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12" wheels Backspacing HELP ASAP!

Wanting to take advantage of some of these Black Friday sales. My car is about to go to Chassis Shop for a 25.3/Mini Tub/etc...I want to run 12 inch rear wheels. I don't have my Rearend yet so I can narrow it as much as needed. Want to tuck the tires nicely and have choices as to what I can run (true 10.5's, 325/315 or even 275 Radials). I just need to know what Backspacing is needed to achieve the "tucked look". Anyone have any first hand experiance with doing this?

Nov 24, 2011 | 11:11 AM

vtec

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From: sc

you could run 6", 5", or 4" backspacing.... the "tuck" will be determined by the width of the rearend.

Nov 24, 2011 | 05:55 PM

TNTaddict

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12" narrowed rearend (6" each side), 12" WELD alumstar 4.5" BS and WOLF minitub, every thing still in a stock location.

if i'd do it again i'd go with 5" narrowed each side, 4.5" BS or maybe 4".

Nov 24, 2011 | 08:48 PM

droksformula

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Quote:

Originally Posted by TNTaddict

12" narrowed rearend (6" each side), 12" WELD alumstar 4.5" BS and WOLF minitub, every thing still in a stock location.

if i'd do it again i'd go with 5" narrowed each side, 4.5" BS or maybe 4".

Sorry, that's not correct. A 12" rim in the stock location would have a 8.5" backspacing. And narrowing 3" keeping wheel in stock location would be 5.5" bs, tucking rim 1" would be 6.5" bs.

Nov 25, 2011 | 05:45 AM

TNTaddict

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Quote:

Originally Posted by droksformula

Sorry, that's not correct. A 12" rim in the stock location would have a 8.5" backspacing. And narrowing 3" keeping wheel in stock location would be 5.5" bs, tucking rim 1" would be 6.5" bs.

by "stock location" i meant the LCA and the other parts, because i'm racing in a stock style suspension class( where you are not allowed to relocate any thing)

i'm not a expert but i'm sure it's 12" wheels, true 10.5 ,4" BS (Not 4.5" , just checked the invoice) and 6" narrowed each side (total of 12") rearend.

here is a link for some pics and spec:
https://ls1tech.com/forums/drag-raci...9-rearend.html

Nov 28, 2011 | 03:59 AM

1dirtyZ

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From: the not so stock tribe

and you used the upper hole in the panhard bar mounting bracket,,,,
and cut the excess off ,,,,, and built a new panhard bar ,,,, only

now get ur *** back to working on your leaky pile !

as for the OP , definatly don't go with 6" from each side , the clearances are sooo close when you do so!

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