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Old 05-20-2008, 11:53 AM
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Rear Diff Cover

Okay so this is what I am hearing so I figured i would post this question. I am hearing that the 2008 Aluminum diff cover will directly fit our rear end. Is this true, if so I will definitely purchase one since the closest model costs 200.00 versus the 49.00 at the dealer.
Also, what is the major difference between the 20" tires on the new f series that makes them not a direct bolt on to an '02 Excursion?
Thanks in advance for the help.
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Old 05-20-2008, 11:55 AM
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Yes, you will need to get longer bolts. The pan is thicker than the stock one you have now.
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Old 05-20-2008, 11:55 AM
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Just make sure you get the pan for the sterling 10.5 SRW.
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Old 05-20-2008, 12:09 PM
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Sweet! Thanks, I was cruising the posts and I found one in another forum that even had pics and part numbers.
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Old 05-20-2008, 12:20 PM
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Are you doing this for looks for function? The 08 cover is looks and no function where as the bigger PML and Mag Hytec hold more oil and will have function and looks.
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Old 05-20-2008, 01:00 PM
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On your wheel question the backspacing changed when they went to coils up front in '05.

Mark
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Old 05-20-2008, 01:37 PM
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Quote:
Originally Posted by Soaggydogg View Post
Are you doing this for looks for function? The 08 cover is looks and no function where as the bigger PML and Mag Hytec hold more oil and will have function and looks.

Not entirely true, the 08 is finned AL, and the older one is stamped steel. I saw a drop of about 20 degrees in MAX temp when switching.
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Rear Diff Cover-rear-diff-cover.jpg   Rear Diff Cover-rear-diff-cover2.jpg  
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Old 05-20-2008, 01:47 PM
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Originally Posted by CSIPSD View Post
Not entirely true, the 08 is finned AL, and the older one is stamped steel. I saw a drop of about 20 degrees in MAX temp when switching.
Was that pulling, Joe? What do your temps run normally? I tow a lot and I switched because my old steel one was rusted pretty bad, probably due to the heat. I figured it couldn't hurt...
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Old 05-20-2008, 01:52 PM
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Originally Posted by Evil Eye View Post
Was that pulling, Joe? What do your temps run normally? I tow a lot and I switched because my old steel one was rusted pretty bad, probably due to the heat. I figured it couldn't hurt...
Thats towing, only time I see above 120ish is when towing. Would see almost 200 before, and now have yet to see 180-185
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Old 05-20-2008, 02:12 PM
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Ok, good to know that it was worthwhile and that you have some info to back it up.
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