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Old 01-20-2009, 09:11 AM
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Some questions

Hey guys, havent been on the .org in awhile! But i took my truck into ford because i was leaking diesel pretty bad, they replaced my fuel water drain valve. This solved the problem but they also told me i needed to flush my powersteering, change the fluid in my front and rear dif, and change the transfer case fluid. I refuse to pay those guys $130 per dif to crack a couple of bolts. So we are going to do this stuff ourselves.

Have a few questions,

ATF or powersteering fluid for the powersteering? (sorry stupid question?)

Do we need to use an additive for the differentials if we use royal purple?

And im planning on using royal purple fully synthetic, what do you guys recommend (for fluid in any of this stuff) ?


Sorry for the long post! and thanks in advance, you guys rock.
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Old 01-20-2009, 09:48 AM
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bump to the top
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Old 01-20-2009, 09:50 AM
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Yes ATF in the Power steering and Transfer Case, using synthetic will help the PS unit. If you have a LS in the rear you need to use the additive. Royal Purple has the modifier in the fluid, that is why I won't use it. The reason why Fords LS have a bad reputation is they put way to much modifier in the fluid. They call for 8 oz, I recommend a good fluid like Valvoline, then add 3oz of modifier and do some tight figure eights, if you hear chatter stop and add another oz, stop as soon as the chatter stops. My LS has never worked so well, and yours will too.

I would also flush your brake fluid if it has been more then 2-3 years as well.

NCH
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Old 01-20-2009, 06:24 PM
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thanks! same for the front dif as well?


are the fronts and backs the same? how much gear lube?
Do we use the same stuff in the front and the back?
What modifier should i buy, and i can use fully synthetic and mix it with the modifier myself right?

Last edited by somebodyelse5; 01-20-2009 at 06:39 PM.
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  #5  
Old 01-22-2009, 04:31 PM
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another bump to the top!
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