Re: Backspacing

[John Hammond <426_maxwedge@xxxxxxxxxxx>]

I don't know if this will help anybody or not but I'll just throw this out 
here in hopes somebody
can benefit from it.  On my '64 330 wagon I'm using a '70 B-body 8 3/4 with 
the bigger but not
the biggest rear drums.  The original springs haven't been moved but I do 
have a 2" lowering block
installed.  By trimming the inner fender lips about 1/4", (just to feel 
safer not really required), and a
bit of wheelhouse massaging in the area that would be likely to scrub the 
sidewall of the tire at the
topmost bulged area I was indeed able to mount some impressive rolling stock 
without clearance
problems or major reconstruction.  After making some room and taking some 
careful measurements
here's what worked, (and didn't work), on my longroof......
First Attempt:  Using a stock 8", (not 7"), Little Red Express chromed steel 
slot, (4 1/2 backspace
as I recall, correct me if that's not right), I mounted a 255/60/15. This 
fit everywhere with no isssues
whatsoever.  It looked like a sav-a-spare in there so I went to.....
Second Attempt:  Got hold of some old Centerline AutoDrag lookin', NoName, 
pair off Ebay that
measured 9" with 3.75 backspacing.  Mounted a 265/50/15 and it had problems 
in the top side
wall outer bulge area and the forward wheelip area was kinda scary. Which 
brings us to....
Third Attempt: Borrowed a 15x10 aftermarket Chevy Rally copy that was dual 
pattern drilled.
mounted a  295/50/15 CooperCobra tire on it and checked again. This 
did/could have worked.
The top sidewall bulge was  clearing but a l'il tooo close for comfort.  If 
it had worked great;
it wouldn't have stayed....no way was I puttin' Chevy wheels on a Mopar even 
if they did have a
5 on 4 1/2" bolt circle. Which brought me to the combo of choice....
The Final Rollers:  Armed with this info, I searched the Summit site in 
countlesss pages of part #'s
under Wheel Vintiques products.  I found that exactly what I wanted had a 
part number and there-
by not a special order from a pricing perspective.  While I've forgotten the 
number, what I ordered
was a Mopar Cop Wheel in 15x10 with 5" of backspacing.  Using the 
aformentioned 295/50/15
CooperCobra this is about as good as it can get fittment wise. Room to 
springs, room to lips, no
scrubbing - from jumping on the back bumper...and remember this is with two 
inches of drop
on the stock springs.  The view from behind this thing makes Oprah's ass 
look boney. Shoot for
4 3/4" or 5" backspacing on these things and it's surprising what will go 
under there....
John Hammond
----- Original Message ----- 







> Jeff, from measurements I have done, I don't think that combo will clear 
> sufficently.  Which rear end housing are you useing?  Mine is a 1965 B 
> body housing in a 64 Dodge 440. Maybe someone else here has tried it and 
> knows for sure......................................MO
>
> {Steve Mick}
> http://www.1962to1965mopar.ornocar.com/mick64.html
>
> ----- Original Message ----- 
> From: "Jeff Adams" <ledman_70@xxxxxxxxxxx>
> To: <1962to1965mopars@xxxxxxxxxx>
> Sent: Tuesday, July 20, 2010 9:16 AM
> Subject: Backspacing
>
>
> > Do you guys thing this wheel/offset will fit under the rear of my 64
> > Polara with a 275/60/15 tire? It's a 10" wide wheel with a 4.5"
> > backspace. Anybody running a 10" wide wheel under their B with stock
> > springs/tubs?
> > http://www.jegs.com/i/JEGS/555/69081/10002/-1?parentProductId=1275708
> >
> >
> > Jeff Adams
> > 64 Polara
> >
> >
> > ----
> > Please address private mail -- mail of interest to only one person --  
> > directly to that person.  I.e., send parts/car transactions and 
> > negotiations as well as other personal messages only to the intended 
> > recipient, not to the Clubhouse public address. This practice will 
> > protect your privacy, reduce the total volume of mail and fine tune the 
> > content signal to Mopar topic.  Thanks!
> >
> > 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> > http://www.1962to1965mopar.ornocar.org/mletiq.html and 
> > http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
>
>
> ----
> Please address private mail -- mail of interest to only one person --  
> directly to that person.  I.e., send parts/car transactions and 
> negotiations as well as other personal messages only to the intended 
> recipient, not to the Clubhouse public address. This practice will protect 
> your privacy, reduce the total volume of mail and fine tune the content 
> signal to Mopar topic.  Thanks!
>
> 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> http://www.1962to1965mopar.ornocar.org/mletiq.html and 


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.