08 diff cover

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Jun 14, 2009 | 03:51 PM

villestrip

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Tuned

Joined: Apr 2007

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08 diff cover

Do you need washers when you install this aluminum diff cover or just the bolts. Thanks

Jun 14, 2009 | 03:56 PM

juneau76

Cargo Master

Joined: Sep 2007

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I believe that most people use washers. That's what I plan to do when I do it.

Jun 14, 2009 | 04:07 PM

villestrip

Thread Starter

Tuned

Joined: Apr 2007

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Likes: 3

Lock washers or just flat washers?

Jun 14, 2009 | 07:38 PM

Going_Going_Gone

Tuned

Joined: Mar 2006

Posts: 496

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From: Arizona

Flat stainless washers

Jun 15, 2009 | 12:21 AM

riggz

Postmaster

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From: Dunwoody, GA

I went with longer flanged bolts instead of bolts and washers. Looks almost exactly the same as the stock bolts. Get them from McMaster-Carr . Part # 92316A585. 5/16" - 18 Thread 1.25" length fully threaded. A pack of 25 is $6.61 + shipping.

Jun 15, 2009 | 12:40 AM

Robs06SuperDuty

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Joined: Dec 2006

Posts: 725

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From: Gettysburg, PA

not gonna hijack the thread but whats the advantage of the 08 diff cover? dissapating heat and keeping everything cooler since it has heatsink fins??

Jun 15, 2009 | 02:12 AM

truckeemtnfords

Logistics Pro

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From: Fallon,NV & Bainbridge OH

I used standard grade 5 bolts and washers. Painted the cover black and then sanded the ends of the fins. More surface area for cooling and the COOL factor.

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Jun 15, 2009 | 05:02 AM

dunney1

New User

Joined: Sep 2007

Posts: 13

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My 08 has just the plain steal cover. I feel giped.

Jun 15, 2009 | 06:58 AM

#10

dkf

Hotshot

Joined: Mar 2007

Posts: 10,101

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From: Pa

08'up 5.4l and 6.8l trucks got the stamped steel cover and the 6.4l got the cast aluminum cover.

You'll want to use washers or a flange head bolt because the aluminum is soft.

Jun 16, 2009 | 08:47 PM

#11

riggz

Postmaster

Joined: Mar 2007

Posts: 2,612

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From: Dunwoody, GA

I was changing out my fluid so I went ahead and got the 08 finned cover since the price was pretty good. Looks a lot better than my old brown rusty cover.