For those who went up to 37's - Page 3 - Ford Powerstroke Diesel Forum
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post #21 of 30 Old 10-17-2017, 03:03 PM
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I don't know if this helps or not but I have a 4" lift and 315/75/16s (35x12.50) on the stock wheels with 2" spacers and I have no rubbing issues at all and I think I could easily clear a 37. Also I have no high speed cornering or handling problems, I can run 75 mph in the WV mountains no problem.

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post #22 of 30 Old 10-17-2017, 04:57 PM
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Back to your question at hand.
I did re gear with my Toyos MT 37x13.5x22 went from stock 3.73 to 4.30 gears.
Made a huge difference I'm running right around 2150RPM @70MPH and speed is about 2 or 3 MPH slow as I have found out.
8 inch lift 22x11 wheel -44 backspace no rubbing ever.... I can go to 40's if I wanted too.


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post #23 of 30 Old 10-17-2017, 06:04 PM
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I bought my Excursion with the 8 inches of lift and 37x12's it has now. I want to change it to 4 inch with 35's because the mileage is awful (8-10) and I also am planning to tow in the future and a lower truck handles it better. The truck looks cool and all but imo it isn't worth the headache unless you got money to spend!!

2001 Ford Excursion 7.3 4 inch BDS Lift & Fabtech 3.5 inch Leaf Spring Hangar System

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post #24 of 30 Old 10-18-2017, 04:55 AM
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Quote:
Originally Posted by Horizon122 View Post
Those military tires are 12.50 wide, correct? Based on research those wheels are either 9.5" wide and have a -19 offset or are 12" wide and have a -44 offset. Which do you think they more closely resemble? The 12" wide's would give a flat surface with the tire and the 9.5" would give a bulge.



I think I will go with the 4" Atlas springs and PMF 5.5" traction block if your saying 37x12.50 won't touch the springs. I daily drive in crowed parking lots for school and hitting the springs is getting old.



My 35's will fit fine with the proper wheel on my 2" lift so maybe going with the 3" springs on 35x13.50 is also an option. My main concern is high speed handing. I will be going with dual fox shocks, 2.0 or resi i'm not sure of yet. I would like to keep the body roll to a minimum and currently I pretty much have none.


They are 12" wide and appear to have a 4.75-5" back spacing. The tires are 12.5 but on the 12" rim they don't look that wide.


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01 f-250, Standard
Rev tech 4" lift,37" military wrangler Mt tires
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post #25 of 30 Old 10-18-2017, 04:57 AM
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Here are some pics of where I cut the fender and moved the fender liner back.

You can see on the second pic that I drill a new hole about 1" forward in the liner and re installed the push pin thing.


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01 f-250, Standard
Rev tech 4" lift,37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks inner cooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals

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post #26 of 30 Old 10-18-2017, 05:21 AM
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Quote:
Originally Posted by Horizon122 View Post
How do you like the SSBC calipers? I was gonna go with those until I saw Wilwood made a set that looks like they belong on a super car.

Did you use Yukon gears? That is a name I hear frequently but know nothing about gearing.

I get that now with my stock wheels and 35's. If I am going to put all this money into my truck and spend $5K on wheels and tires i'd like them to not rub.

SSBC's are good. I wanted to keep the 18" factory 5 spokes and the Wilwoods wouldn't fit. The SSBC's have a very different brake pedal feel you just need to get used to, but the stopping power is awesome!

Gears...yes I used Yukon ring and pinons. Good stuff!

2005 Ex EB 6.0L, 35" MT ATZ's, Dana 60 frt, 4.30 gears, ARB's, 18" 2004 KR wheels, 2" PMF spring hangers, V/Bís, PMF Traction Blocks, PowerSlots, Bilsteins, 2008 Power mirrors, DC Power XP270 alt, Performax gauges, Coolant Filter, Nuc By-pass Oil filter, Driven Diesel RR, 4" Silverline, SCT, ARPs, EGRx, DPC Triple, PowerMax, Optimas, Atomic LEDs...
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post #27 of 30 Old 10-18-2017, 09:55 AM
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I had a 2.5 Carli pintop kit installed with their radius arms and went with 37X 12.5 nitto trail grapplers. I have no rubbing and the truck still has get up and go, MPG is 14-15. granted I had this all done within the first 1000 miles so not sure what baseline with stock was.
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post #28 of 30 Old 10-18-2017, 04:58 PM Thread Starter
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@sbluke55

Do you think -19 offset wheels will clear the springs on 37x12.50? The 12" wide -44 wheels are 2" away from the springs and the 10" wide -19 wheels are 1" away from the springs. If you don't mind would you be able to take a pic of your wheels turned to full lock and the distance between the tread and springs.

If I will be able to get away with that then I will definitely do a 4" front lift and 5.5" rear traction block.

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post #29 of 30 Old 10-19-2017, 05:48 AM
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I'm not sure on the on the offset, id have to look up the specs. I'll get some pics tonight.


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01 f-250, Standard
Rev tech 4" lift,37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks inner cooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals

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post #30 of 30 Old 10-19-2017, 06:18 AM
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Just a quick search. The backspacing on the 9.5" rim is 4.5" and the 12 is 4.75". I usually use bds as a guide for what backspacing to use and it looks like a 4-4.5" backspacing is recommended for 36 -38" tires. So my "guess" is either rim will work fine without rubbing. Obviously the wider rim will require more trimming.

Just to throw this out there because you asked earlier. I have no issues with body roll or cornering. The truck is planted.


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01 f-250, Standard
Rev tech 4" lift,37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks inner cooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals

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