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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671593
09/26/14 10:49 PM
09/26/14 10:49 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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What is the rim width? Also might as well put some kind of spacers, washers whatever, and space it out and see if you canget all the weight down on the car to see how much inner wheelhouse massaging will be needed. If you have Hotchkis springs you are a LONG way from ride height in your pic.
Mopar to the bone!!!
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: 72Swinger]
#1671594
09/26/14 10:58 PM
09/26/14 10:58 PM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
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OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
What is the rim width? Also might as well put some kind of spacers, washers whatever, and space it out and see if you canget all the weight down on the car to see how much inner wheelhouse massaging will be needed. If you have Hotchkis springs you are a LONG way from ride height in your pic.
I'm not sure... I can put some washers on the studs to space it out a bit. I figured the suspension wasn't loaded enough (Hotchkis leafs). Should I just start throwing things in the trunk?
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671595
09/26/14 11:02 PM
09/26/14 11:02 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Yes, load it down. My Hotchkis springs with half tank of gas on my Dart sit perfectly flat, 0 arch in the main leaf, at ride height. Load it until they're flat and you should be good.
Mopar to the bone!!!
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671599
09/27/14 12:05 AM
09/27/14 12:05 AM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Cool, I think ride height wise you're close. The wheel lip should be even with the wheelwell lip looking from the side. Anyway, stick your hand between the inside of the tire and the inner wheelhouse next. Also take some chalk and trace the tire to the inner wheelhouse. This will give you an idea of where to put the block of wood and sledge later lol.
Mopar to the bone!!!
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: 72Swinger]
#1671600
09/27/14 12:32 AM
09/27/14 12:32 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
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OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
Cool, I think ride height wise you're close. The wheel lip should be even with the wheelwell lip looking from the side.
Is this with the current wheel that's on there or an 18" wheel?
Quote:
Anyway, stick your hand between the inside of the tire and the inner wheelhouse next.
I did this earlier and I think I was good, but I'll try it again. I haven't mocked this up on the other side, yet.
Quote:
Also take some chalk and trace the tire to the inner wheelhouse. This will give you an idea of where to put the block of wood and sledge later lol.
I'm not sure what the purpose of the chalk is for. I know the sledge is to make some extra room and to remove the giant dimple from the top of the wheel well.
So, am I almost close to proving you can put a 275 series tire underneath a lowered A body with little modifications? Lol.
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671601
09/27/14 12:47 AM
09/27/14 12:47 AM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Here is mine for comparison. Yes these are 18's, but my front hanger is stock +1/2" to move spring eye toward the ground and it has 1" longer than stock rear shackles. I had to do this for many reason that probably won't apply to yours. The inner clearance might be good now, I'm guessing you can get a finger in there, but the first time you pull into a driveway it wont be. Also check at the front lower edge of the inner wheel house as it tapers and rounds in there. I never said it couldn't be done, I said it could be if you nail the backspacing and do a little massaging.
Mopar to the bone!!!
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: 72Swinger]
#1671602
09/27/14 01:12 AM
09/27/14 01:12 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
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OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
Here is mine for comparison. Yes these are 18's, but my front hanger is stock +1/2" to move spring eye toward the ground and it has 1" longer than stock rear shackles. I had to do this for many reason that probably won't apply to yours. The inner clearance might be good now, I'm guessing you can get a finger in there, but the first time you pull into a driveway it wont be. Also check at the front lower edge of the inner wheel house as it tapers and rounds in there. I never said it couldn't be done, I said it could be if you nail the backspacing and do a little massaging.
I'm still not happy about the tire to spring clearance, I'd prefer to trim the the outer wheel lip a little and give it a touch less back spacing. I'll check the inner edge as well.
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671603
09/27/14 01:29 AM
09/27/14 01:29 AM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Interesting, when I put 245/60-14's in the back of my 72 Swinger, abut 20 years ago, I had to roll the fender lip and still had less room than you do on either side of the tire. In a hard corner my sidewall would just rub the leaf. Never rubbed the outside though. I had maybe 3/4" clearance on both sides of the tire. I cannot imagine being able to fit a tire with a bit more than an inch wider in there.
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: Supercuda]
#1671604
09/27/14 01:33 AM
09/27/14 01:33 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
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OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
Interesting, when I put 245/60-14's in the back of my 72 Swinger, abut 20 years ago, I had to roll the fender lip and still had less room than you do on either side of the tire. In a hard corner my sidewall would just rub the leaf. Never rubbed the outside though. I had maybe 3/4" clearance on both sides of the tire. I cannot imagine being able to fit a tire with a bit more than an inch wider in there.
I'm still worried about turning or exiting a driveway situations. I'm not sure I'm happy with the amount of room that's there. I'd most likely have to trim the outer wheel well lip and reduce the offset a bit more to get ample clearance and center the wheel a bit more.
I think part of your problem would have been the sidewall flexing and bulging.
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671606
09/27/14 01:45 AM
09/27/14 01:45 AM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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In my experience you want to be tighter to the outside. Say centered you had 1/2" on both sides, I'd move it to 1/4" outside and 3/4" inside. Under hard cornering outside tire moves away from fender and towards inner tub and spring. The other side is moving toward the fender a little but its also traveling away to. Plus tires dont flex near as much at the tops. Ontop of that with 18's 35-40 series rubber, sidewalls flex in minimal.
Mopar to the bone!!!
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: 72Swinger]
#1671607
09/27/14 01:57 AM
09/27/14 01:57 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
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OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
In my experience you want to be tighter to the outside. Say centered you had 1/2" on both sides, I'd move it to 1/4" outside and 3/4" inside. Under hard cornering outside tire moves away from fender and towards inner tub and spring. The other side is moving toward the fender a little but its also traveling away to. Plus tires dont flex near as much at the tops. Ontop of that with 18's 35-40 series rubber, sidewalls flex in minimal.
That's exactly what I thought. Some  and a little  should help. My driveway is a little steep and the road I'm on is uphill as well so I really would prefer not to rub.
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: Supercuda]
#1671608
09/27/14 02:07 AM
09/27/14 02:07 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
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OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
Quote:
I think part of your problem would have been the sidewall flexing and bulging.
You are exactly right there. With short sidewalls like you are showing I doubt it would have rubbed. But I had what I had and short sidewall tires back then were out of my price range.
These are just for mock ups too. My sidewall should be shorter than this as I'm going to get an 18" wheel.
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: MuuMuu101]
#1671609
09/27/14 09:38 AM
09/27/14 09:38 AM
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Joined: May 2005
Posts: 723
Houston Tx
Uhcoog1
super stock
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super stock
Joined: May 2005
Posts: 723
Houston Tx
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In my experience I have found that clearance at ride height is good, but clearance under 3" of compression is where you need to be looking.
You are fine with 1/4"-3/8" clearance from the leaf. That stays mostly static when driving.
-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course
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Re: 275 Series Tires, A-bodies, and Offset Shackles
[Re: Uhcoog1]
#1671610
09/27/14 01:57 PM
09/27/14 01:57 PM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
OP
I got lucky at Woodward!
|
OP
I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
|
Quote:
In my experience I have found that clearance at ride height is good, but clearance under 3" of compression is where you need to be looking.
You are fine with 1/4"-3/8" clearance from the leaf. That stays mostly static when driving.
That's what I'm worried about also. Is when the springs compress under hard loading or backing out of a steep driveway.
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