08 diff cover
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08 diff cover
just got mt 08 diff. cover what size bolts will it take the factory ones in my 01 wont be long enough right. Also purchased 8 oz. of friction modifier to go in gear oil was thinking about using royal purple 75/140 is it worth the money or should i go with another synthetic. thanks
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Joined: Feb 2008
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From: Lancaster, Pa.
5/16-18 X 1 1/4 bolt size, thanks to partsguyed.. I got my RP 75-140 synthetic for 9.99 a quart at Pep-Boys, must have been a sale or a mistake but grabbed it fast, good stuff, its been in mine for about 50,000 miles. It has the modifier already added to it but you might have to add a bit more modifier to it, I did, still had grabbing around tight corners. I added about a half bottle of the 5 oz Motorcraft bottle.
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Joined: Dec 2008
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From: Wallingford, CT
If you can't get bolts locally you can order a bolt kit through Clay.
Riffraff Diesel: 08' Diff Cover Bolt Kit
Riffraff Diesel: 08' Diff Cover Bolt Kit
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From: Dallas-Ft. Worth
DO NOT add any FM unless it chatters , then add 2oz at a time until it quits. If you add too much, you end up with an open diff, essentially.
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Lead Driver
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From: Norco,CA
My neighor uses amsoil because when towing his diff oil temp wouldn't go down after climbing a hill. With the amsoil it returned to normal very quickly. He has a 38 foot toy hauler and gauges on everything.
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From: Dallas-Ft. Worth
RP is okay stuff. Most will do you fine, as they're all syn in that weight from what I've seen anyway. Just make sure you verify whether it has the FM added already or not before you do anything, as well as check your door sticker code. If you have a non-LS diff, presence of additive or not makes no difference to you.
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