Re: '99 E350 V10 rear end noise?
Tom,I have the same noise as you are experiencing and my dealer said that I shouldn't worry about it.
The noise was the lash between the gears as my dealer took the rear diff. cover off and inspected the gears,wheel bearings,etc.
They said that the only way to eliminate the noise is a new ring and pinion but that I might have the same noise return again in the future. I dodn't know if you can shim the van rear ends to reduce the noise or not as I didn't ask at the time.
All the Ford vans I've had in my business growled to a certain extent after time due to the gear surfaces wearing.
My 1994 Ford E-350 van has the same noise at 180,000 miles as compared to my 2000 van at 70,000 miles.
I guess it all depends on how tight they set up the rear diff. carrier assy. at the factory as it relates to when the noise starts to get noticed.
Next year my goal is to retrofit a Dana 80 rearend (3:54) with the heavy cut gears in my van to bulletize the rest of the drivetrain.
Any competent repair shop with good refferals should be able to distinguish where your rear end noise is originating from.
2000 E-350 Van,BTS Tranny,Custom Dana 80 Axle w/ ARB & 3:55 Gears, Swamp 175cc Injectors, Custom 4 Position Chip,TS Billet Intakes,W/Wheel,PS2000,Magnaflow 4" Exhaust,ITP Fuel Regulator,4 gauge pillar post,TTM,CTI Idle Controller,Amsoil Fluids,Evans,203 Thermostat,Coolant Filter,J&J S.S. Grill,Art Rotors,Custom Flame Job,Road Armor Bumper,Warn M15000 Winch,Bushwacker Flares,Bilstein Shocks,Centerlines,Maghytec Covers. dynoed at 345.5 rwhp
FUTURE MODS: Upgraded turbo, HD oil pump,Intercooler with water injection.
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04 Jeep Rubicon
RE 5.5" Long Arm Lift,1"body/eng.lift,Banks Header/ Exhaust,37" IROKS,Mickey Thomson Classic 2 beadlocks,Road Armor Bumpers,Warn 9500TI winch,Alloy Usa axleshafts,CTM u-joints,Nth degree oil pan skid,Clayton front high clearance brackets,Toys by Troy crossover steering,Poison Spyder Rock Sliders.