Cracking 4R100 bellhousing on 99 F350 Powerstroke - Diesel Forum -
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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post #1 of 5 (permalink) Old 03-13-2005, 10:03 PM Thread Starter
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Cracking 4R100 bellhousing on 99 F350 Powerstroke

I have a problem with the the cracking of the transmission bell housing on my Powerstroke. Truck runs fine. It is on both sides starting at the bottom and going up the sides it is near the large end of the bell
Im trying to figure out what is causing this. The only mods i have made to this truck is the fuel tank pickup kit and the high pressure oil rail cross over hose. The transfer case failed a couple years ago and recently the rear driveline came off the back of the transfer case due to use of wrong bolts by a mechanic when the transfer case was replaced.
I do not race this truck or go tearing thru the woods with it. I occasionally pull a small 2 horse trailer with it. Its a 1999 F350 4X4 Powerstroke extended cab short box SRW. Did the transfer case and the driveline problems cause this? or is something more sinister going on even though the truck drives just fine.
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post #2 of 5 (permalink) Old 03-13-2005, 11:38 PM
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Re: Cracking 4R100 bellhousing on 99 F350 Powerstroke

The only mods i have made to this truck is the fuel tank pickup kit and the high pressure oil rail cross over hose.

[/ QUOTE ]

oh boy, this will give those H/X mod haters some more ammunition [img]/ubbthreads/images/graemlins/rolleyes.gif[/img]

sorry...couldn't resist

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post #3 of 5 (permalink) Old 03-14-2005, 01:29 AM
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Re: Cracking 4R100 bellhousing on 99 F350 Powerstroke

I would not rule out the Possibility of the drive line causing this, if the shaft was out of ballance this would cuase a lot of Vibration, which I would suspect you would feel, I Would take it to a shop tha can weld aluminum cast and get it reapaired promply, then keep a close Eye on it for continued growth.

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post #4 of 5 (permalink) Old 03-14-2005, 07:08 AM
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Re: Cracking 4R100 bellhousing on 99 F350 Powerstroke

Was the truck ever hit in the front? I have seen transmission crack when the front axle gets pushed back slightly from a impact making the transfer case act as a lever snapping the transmission. All that energy gets transfered through the front drive shaft. Maybe some heavy off roading could cause this too.

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post #5 of 5 (permalink) Old 03-14-2005, 10:49 AM
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Re: Cracking 4R100 bellhousing on 99 F350 Powerstroke

Happened to my 99 when the drive line came apart at the t-case [img]/ubbthreads/images/graemlins/eek.gif[/img]. Going about 70 on I-5 in Washington [img]/ubbthreads/images/graemlins/phoney.gif[/img]! In the fast lane, bet I pissed some people off that night trying to get to the sholder [img]/ubbthreads/images/graemlins/mad.gif[/img]! Cost me a new trans, starter, and flywheel. I would see the guy who did the t-case [img]/ubbthreads/images/graemlins/wink.gif[/img]!

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