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 Post Posted: Wed Aug 15, 2012 1:11 am 
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Hey malibu795 did you wind up going this route?

If not here is what I've found on mine, seems only a few people have done this, at all. I'll start out saying mine are 17x9.5, not 17x9, and the tires are 275/40/17.

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17x9.5 is a bust when it comes to lowering spindles. Where the wheel/tire sits in those pics is about the best you'll get, because the location of the tie rod is in the way... this would change with stock spindles because the actual hub location is moved 2" down on the spindle, clearing the tie rod. It's clear that the only way this would work would be if you could stretch the lip of the fender out probably at least 1.5" for clearance, possibly 2". The edge of the tire sidewall is exactly 1" from the outer lip of the fender.

Next hurdle, backspacing. With stock a-arms, the most you'll get comfortably is 4.875" (4 7/8"), possibly 5" if you're lucky. 4.875" is the backspacing the wheel is at in the pics. If you go tighter (only way would be with stock spindles) you will likely come into contact with the a-arm, frame, or both depending on tire height, which leads to the next topic.

If everything sits properly, the car is 3" lower than stock: 2" Belltech spindles and 1902 Hotchkis springs (1" advertised drop). At this height with 275/40/17s the tire just barely rubs the rear of the inner fender at full lock, possibly worse if the suspension is moving. The tire also contacts the lower 'tip' of the wheel well lip (where the wheel well lip comes down and meets the very bottom of the sheetmetal), so it's possible that would need to be either trimmed or modified somehow for clearance, again just barely.

Do I want to run a set of 275/40/17s on all 4 corners? Yes I do.

Is it an easy job? No it's not. You would need to either modify the suspension - either by running different a-arms with stock spindles for more wheel clearance, or modify the fenders to clear the wider tire with lowering spindles.

Either way it won't be cheap, and to match the wider track you would gain with the front tires + lowering spindles, you would either need to modify the rear fenders as well to match and go with less backspacing on the rear (think about 2" less)... this would give the car more of a 'Trans Am'-ish look, but if done right it would almost be hard to tell by someone who isn't that familiar with a G-Body. To get the front tires to sit in line with the rears (4.875" is just about perfect for a 17x9.5 btw, only light trimming or rolling of the fender lips is all that's required), you would have to go the a-arm/stock spindle route and find some way of making clearance with the inner fenders.

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 Post Posted: Mon Aug 20, 2012 4:02 pm 
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OH snap!!!!! likey very much!!!!!
i havent gotten much of anything done broke the tailgate glass voe the 2nd time in oct pull the engine and put in my 75 K20 for the winter and it have sit since. i still have the 17x9 x5"bs havent mount a tire on it yet. with 1/16 or 1/8" space sounds like it would be the ticket. if i did the rough math right your 9.5 sit out almost 5/8" more then 9" would.. those Fbody or C5 wheels?
that sitting on its own weight right now?

i have since gone self employed as a hotshot trucker.. with a 99 3500HD 6.5/4l85E now has a LBZ dmax/4l85E repower in it. build thread on it same build two different sights with plenty of pictures between the two and some what repeatative.
http://www.thetruckstop.us/forum/showth ... w-on-a-6-5
http://www.duramaxdiesels.com/forum/sho ... hp?t=39285

i have a virgin IV BBC with KP pistons eagle crank and rods waiting for the green light at a machine shop.. goign to sell the parts then drop lbz engine in the wagon

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 Post Posted: Mon Aug 20, 2012 5:44 pm 
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It's sitting on its own in those oics, but I put some other wheels on the front for now. I don't want to risk messing up the fenders and unless I get a pair of regular spindles again I won't be able to run any more backspacing... it wouldn't make a major difference anyway because I would wind up with a wider turning radius.

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 Post Posted: Sun May 26, 2013 9:00 pm 
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hey doober... i see you changed your sig picture... those 275s on it? i just got my wagon up and running again.. rear tires are bout due to being replace..

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79 malibu wagon 454bbc T-56 7.5/8.8 hybrid 3.08
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 Post Posted: Mon May 27, 2013 11:41 am 
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Yup, 275/40/17. The lip will likely need rolling though. With 4.875" backspacing on a 9.5" wheel there is a comfortable amount of room for any extra suspension movement. Forget about that width in the front, better off with 17x8 & 255/40/17 or 245s and it will probably still be tight with a lowered car. With stock style spindles you may be able to move the wheel in another 1/2"-1", but you'll gain a little on the turning radius, because it will want to rub on the rear of the lower control arm. I'd like to find an a-arm that would give some clearance there, then possibly run a slightly wider wheel.

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 Post Posted: Thu May 30, 2013 10:58 pm 
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Hey Doob, if you don't mind me asking, did you have to run a spacer or anything on the back? The rear is tucked about like I want mine, but it's hard to find any info on whether a 9-9.5" wheel will fit in the back. I don't want to notch my rear frame rails, and seems everyone running a wheel that wide is notched.

As for the front, so you would recommend just going with an 8" wheel, and same backspacing as rear?

I want an 18" wheel all the way around, but I want a 9-9.5" wheel on the back and finding someone who's done it without cutting up there car is difficult. I know you're running 17" wheels, but I wonder if the extra 1" in diameter will make me have to find a different backspacing to clear.

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 Post Posted: Fri May 31, 2013 1:58 am 
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It's not as much wheel size as it is overall height/width and backspacing. Those wheels needed a 2.25"-2.5" adapter in the rear, overall backspacing in the rear is about 4.875", meaning roughly 1/4" offset inboard. You will need to roll/cut the fender lip to avoid slicing the sidewall.

With the lowered spindles I'm using, the absolute max backspacing is roughly 4.875", any more and it would interfere with the spindle itself. Stock spindles would take a little more but you would be to the point of hitting the a-arm at full lock, with the 4.875" it just cleared. The wheel/tire setup stuck almost exactly 1" from the front fender, so an 8" wheel with similarly sized tire would put it about 1/2" in from the edge of the fender.

A guy is likely trading me a set of 16x8 Irocs for those wheels, and when I can tear the front end apart for a possibly better set of arms I'll revisit wheels wider than 8"... the rears are fine with 9.5".

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 Post Posted: Fri May 31, 2013 9:01 am 
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That's what I needed to know, appreciate it!

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 Post Posted: Fri Nov 22, 2013 6:56 pm 
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found this thread again.. about this said car..

http://www.maliburacing.com/forum/viewt ... 25&t=65891
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79 malibu wagon 454bbc T-56 7.5/8.8 hybrid 3.08
99 C3500HD dmax/4L85
smooth seas never made a skillfull salior


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 Post Posted: Fri Apr 11, 2014 6:25 pm 
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they fit they fit they fit!!!!!!! 275/40/70 maxxis tires) on craggar 17x9 5" BS BBC iron head 5608 moog virgin springs. and in no certain order.. only saw two problem areas the ont he forward part of the fender can earliy be trimed... as for the back... having inside mount weights they hit,,, going to be picking up some 1/4" spacers for the back
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adam wildman USN vet
79 malibu wagon 454bbc T-56 7.5/8.8 hybrid 3.08
99 C3500HD dmax/4L85
smooth seas never made a skillfull salior


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 Post Posted: Fri Apr 11, 2014 6:57 pm 
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Have you driven it with those tires on the front? I'm very interested to see they will rub anywhere else. I'm only running 245/50/16 all the way around and the fronts rub on full lock.

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 Post Posted: Fri Apr 11, 2014 7:07 pm 
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im running 245/60/15 and the rub on the, a arm, sway bar and catch the front fender part, rear side of the fender at full lock... the 275s did not hit any of it...i did a couple figure "8s" in my unlce's roughly plowed field plenty of 4-6" ruts with no rubbing... IIRC yours if lowered mine is not..
outside the front fender like there is min .5-1" clearance on the "pinch" points and plenty of clearance on the tire to inside fo the rolled lip at the top.
said tires i used.. http://www.jegs.com/i/Maxxis+Tires/653/ ... 0/10002/-1 with a UTQG 300 wear rating i dont expect to ger much more than 30k if that out of them... but at a 115.00 each it was hard to pass them up...

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79 malibu wagon 454bbc T-56 7.5/8.8 hybrid 3.08
99 C3500HD dmax/4L85
smooth seas never made a skillfull salior


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 Post Posted: Fri Apr 11, 2014 7:20 pm 
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Mine is lowered, a lot! LOL I already clearanced the front lower lip of the fenders and lower airdam.

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 Post Posted: Fri Apr 11, 2014 7:25 pm 
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i cant go lower... depending which family gravel driveway i go in i scrap the center section as it is..

like to put these wheels on it... 275/315 f/r would be a nice stance
http://www.summitracing.com/oh/parts/su ... /overview/

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79 malibu wagon 454bbc T-56 7.5/8.8 hybrid 3.08
99 C3500HD dmax/4L85
smooth seas never made a skillfull salior


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 Post Posted: Fri Apr 11, 2014 8:13 pm 
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That would be killer . I've never understood how people fit wide tires on the rear though. My 245's are less than 1/4" away from the frame, and less than 1/4" away from the fender lip, I could roll the lip, but I won't gain that much room to jump up to a 275... :(

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