20x9 XD Monster's? - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 04-08-2012, 07:11 AM Thread Starter
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20x9 XD Monster's?

Anyone running them? Just trying to decide which offset to order. +18 or +35. Gonna run 325 60 20 most likely but dont want to add aftermarket flares. So i need to know if the 35mm offset is gonna work or if i have to go to an 18mm offset.

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post #2 of 6 Old 04-09-2012, 04:35 PM
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I have 20x10 Monsters with 305/55 Nittos, and I am in the process of getting flares... About 2"+ in the front and 1.5 in the back my tires stick out. The +18mm will stick out in front maybe 1", but mind you a +35mm on a 325 size tire may rub quite a bit.... Isnt a 325 near 13.5" wide?

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post #3 of 6 Old 04-10-2012, 10:12 AM Thread Starter
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Thats what im trying to find out if it will rub with the 35 offset. 325mm is exactly 12.5 inches. 26mm in an inch.

+35mm offset on a 9" rim would be 8mm less clearance on the inside and stick out only 18mm more than stock.

+18mm offset on a 9" rim would be 9mm more clearance on the inside but stick out 35 mm more than stock.

I'm thinking i will be ok with the +35 mm offset cause there is more than 8mm of clearance still back there. Just want to make sure before i order. Just need to find someone running a 35 offset 9" rim then i will know for sure. Hahaha

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post #4 of 6 Old 04-10-2012, 11:57 AM
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Are you sure? My buddy has 325s on his dodge amd they are wider than my 12.5s

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post #5 of 6 Old 04-10-2012, 12:00 PM
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Metric Tire Conversion Calculator:

325/60/20 = 35.4x12.8/20

Thats tread width, the tire will most likely be closer to 13.5" once mounted

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post #6 of 6 Old 04-10-2012, 03:30 PM Thread Starter
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I have 305 65 18 on the stock wheels now. Which are 18x8 with +40mm offset. And according to this site Custom rims, wheel tire packages for your ride - RIMSnTIRES.com. 20x9 +35mm with 325 60 20 are going to be 5mm (0.2") closer to the suspension/brakes etc. And they will stick out 15mm (0.6") further than what i have now. This would be the perfect setup to not having to install aftermarket flares. If this is true then i should be able to fit them no problem. Just thought that maybe someone was running this combo and could tell me. Hahaha

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