Miinitubs and narrowed rear, what backspace wheel to run
#2
This is what I want to do when I buy an axle as well, narrowed 3" per side, but I only want to run a 275. From my measuring and thinking, with a 3" narrower axle and a 10" wheel, 5.5" of backspacing will let you suck the wheel and tire combo in 1" from stock allowing you to slightly tuck the tire up into the well. Not sure with a 325 but since your minitubbing, you could possibly achieve the same.
If I'm wrong and someone else has tried this, let me know please.
Rob
If I'm wrong and someone else has tried this, let me know please.
Rob
#4
We have 5.5 inches of backspace. All we did was cut out the bump stops and put a flat plate across there. We have the offset lca's , and our axle was shortened 3" per side too. As you can see we could have went to a 6 inch back space. The only problem was the rims we chose didn't come in 6 inch. 6.5. was the next size. It looks like you might be able to get away wit 6.5 but we didn't want to chance it. IMO 6 would have been perfect. Hope this helps. Best of Luck.
#6
I was pretty surprised too. We were hoping we could have gotten away with 4.5" backspace to get a little more dish to the rim. I'm not sure what rear end you have, but a friend tried our rims on his nine inch with 4 piston wildwood calipers. And the rims hit the calipers. He had 4.5's and they cleared. We have a S60 with strange calipers and they fit fine. Might be apples to oranges but it could be something to check into. Also, I forgot to mention. You either have to BFH, or cut and reweld the front, lower, inner part of the fender well. You will see what I mean when you go to put the tires on. We didn't roll the fender lip. We just took a flap wheel and sanded the edge, to the inner fender, where you see it. The fender is just as ridged as it was.
Last edited by TTur1996; 07-28-2016 at 01:48 PM.
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#11
Race your car!
iTrader: (50)
Factory plastic isn't fitting over any mini tub that will let you tuck the tire in with a fully offset control arm, you'll have to trim them and ditch the rear seat.
A 5 inch backspace wheel with a 3 inch narrow works out about perfect.
If you want to go extreme like I did and are willing to notch the frame and support it with the cage structure.... You can narrow the rear 6 inches per side and run a 15x12'wheel with a 4 inch backspace.
A 5 inch backspace wheel with a 3 inch narrow works out about perfect.
If you want to go extreme like I did and are willing to notch the frame and support it with the cage structure.... You can narrow the rear 6 inches per side and run a 15x12'wheel with a 4 inch backspace.
#12
Just doiing some quick measuring and not really seeing where the problem lies. I bolted up my 15x10 with 7.5 backspace with 275/50/15 et street radials on them, using a 1 inch spacer and it clears all the suspension points on the rear and lca's. The rear isnt in the car you so Im sure it will hit parts of the wheel well. But I can't see if i went with a 5.5 backspace giveing everything an inch more clearance, why it wouldn't work.
ttur1996- any chance you could measure the width of your rear? maybe it isn't the same as mine, idk
ttur1996- any chance you could measure the width of your rear? maybe it isn't the same as mine, idk
#13
Sorry man, haven't been on in a few days. My rear end measures 60.5" flange to flange.
#14
If I remember correctly, the reason we didn't go 6.5", is the front, lower, inside wheel well would need to be reconfigured, by the lca front mounting point.. I think 6" was doable, just trimming and rewelding. Because we had to a little with 5.5" backspace. I'm not sure if you could get away with 6.5". On our car, you can see positively that a 4.5" back space on a 10" rim, would not have fit. I can't remember what the reasoning was, but when we ordered our S60 from Strange, they said that was as short as they could go on an F-body with stock mount locations.
#16
Your right, my bad. I just called Strange and they said they could only shorten the S60 2.25" per side but suggested only 2" per side. So that's what we got apparently. They said they would shorten it as much as they could when we ordered it. I was always under the impression that it was shortened 3" per side, like I asked for. Sorry about that. I guess we never measured the old ten bolt. Was just pumped to get the S60 and never paid any attention. No wonder why we couldn't do a 4.5" backspace. Lol
#17
TECH Regular
iTrader: (18)
Factory plastic isn't fitting over any mini tub that will let you tuck the tire in with a fully offset control arm, you'll have to trim them and ditch the rear seat.
A 5 inch backspace wheel with a 3 inch narrow works out about perfect.
If you want to go extreme like I did and are willing to notch the frame and support it with the cage structure.... You can narrow the rear 6 inches per side and run a 15x12'wheel with a 4 inch backspace.
A 5 inch backspace wheel with a 3 inch narrow works out about perfect.
If you want to go extreme like I did and are willing to notch the frame and support it with the cage structure.... You can narrow the rear 6 inches per side and run a 15x12'wheel with a 4 inch backspace.
#18
TECH Regular
iTrader: (18)
Your right, my bad. I just called Strange and they said they could only shorten the S60 2.25" per side but suggested only 2" per side. So that's what we got apparently. They said they would shorten it as much as they could when we ordered it. I was always under the impression that it was shortened 3" per side, like I asked for. Sorry about that. I guess we never measured the old ten bolt. Was just pumped to get the S60 and never paid any attention. No wonder why we couldn't do a 4.5" backspace. Lol
#20
Race your car!
iTrader: (50)
Look at the stock shock mounting position.... We cut in past that point.
Without he 25.3 structure in the car and the shocks, lca and anti roll bar being mounted to the cage, and the cage essentially being the rear frame what I did would be about impossible.