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73-87 Chevy _ GMC Trucks => Wheels & Tires => Topic started by: Gandalf1969 on July 20, 2010, 04:28:23 pm

Title: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: Gandalf1969 on July 20, 2010, 04:28:23 pm
Looking to install a flip kit (5") on the rear of my swb fleetside.  I want to run a 15"x10" rally rim with 295/50/15 BFG.  I want to make sure I order the right wheels (backspace) to fit the drop and the 295's.

Is a 12bolt w/5 on 5, 5lug if any of that matters.  In fact - looking at the HD leaf pack, I'm not sure how a flip kit will work - there seems barely enough room for the axle between the top of the springs and the rails.  Does that sound right?  I want to avoid C-notch the frame if I can get the stance I want without it.

Anyone know the correct backspace I need to order for my rims?

Thanks,
G.
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: markdilljr on July 21, 2010, 10:34:16 am
Post a pic of the leaf pack/rear end, there should be enough room to do the flip unless someone has removed leafs from the pack. From what I have been told you need the c-notch if you drop 6" or more, I would do the c-notch anyway so you have enough travel room if you need to haul anything or come across some large bumps
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: Captkaos on July 21, 2010, 06:00:35 pm
How many leafs are in you leaf pack?
You should be able to run about 14" wide tires in there if I remember correctly and not rub.
Backspacing would have to be about 6" I think, but a 10" rim with 295's only needs about 5" and it will fit.
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: VileZambonie on July 21, 2010, 07:17:06 pm
You should be able to fit 325/50R15"s with a 10" wide wheel with the axle flipped but you better make sure those are good springs if you aren't going to notch it.
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: Captkaos on July 22, 2010, 07:55:16 pm
to add to notch not notch, I would HIGHLY recommend notching one.
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: three8six on July 22, 2010, 10:21:11 pm
Even if you don't notch it, atleast cut off your factory bumpstop/bracket and replace it with a shorter on, if you dont it's gonna be a rough ride.
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: kimag2 on August 12, 2010, 03:07:53 pm
I have a 1984 short box with a flip kit , with no notch kit , it does not bottom out . it does not jump wen spinning the tires ( 28X12.00R15LT MT) my rims are 15x10 with a BS of 5" or offset of 0.
http://www.youtube.com/watch?v=tsRmbQOPtOY
Title: Re: '73 C10 w/5" flip - backspace needed to run 295/50/15 on 10" rim
Post by: 75ChevyGuy on October 25, 2010, 08:16:34 pm
What kind of rims do you have on your truck?