Compression Ignition Addict
Join Date: Mar 2008
Location: Santa Rosa, CA
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A Gopro would definitely be your best bet for seeing what's going on!
When you accelerate, the pinion (front of the differential) tries to rotate upwards which would then be pushing down on the rear so this wouldn't the issue, but if you get enough shudder in the rear end maybe the axle housing is springing up and down quickly which could cause it to touch.
Just a thought!
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2005 F-250 CC/SB 4x4 medium wedgewood blue
5" lift, 5" Donahoe rear springs, 35x13.50 MTZ's, 18x12 Fuel Hostage wheels, 4.30 gears, Banks 4" exhaust, Airraid intake, SCT from Innovative, ARP headstuds, Bulletproof ficm, Bulletproof EGR cooler, Scangauge II, Randy Ellis Design lightbar, Street Scene flares, Harpoon mod, Zoodad mod, LED 2010 taillights, Switchback LED front turn signals