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Old 10-03-2006
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Differential & Coolant Additive Questions

Sorry, I guess that heading sounds a little strange. I have 2 questions...

1 - I'd like to change the lube in my front differential but it has no drain plug, and the dealer wants around $180 to service it. I assume the the high cost is due to having to remove the cover (which I couldn't do given its location). Have any of you had any luck just pumping it out, or having a quick lube place do it? Is it even worth it to do it that way?

2 - It seems that I once read a thread about someone putting some sort of additive in there coolant. It seems like this was done half way through the life of coolant, I assume to "refresh" the coolant's add pack. Can someone shed some light on this for me? As always, thanks for any help!

Harvest Gold 2001 Ford Ranger XLT 4x4, Off Road package, SOHC 4.0 automatic, Line-X bed liner and step rails, Silverstar bulbs, Alpine CDA-7894, Alpine R series 6.5 components [front], Alpine R series 5x7's [rear], "hard wired" Passport 7500s radar detector, 35% tint on sides and top of windshield, Undercover tonneau, Rancho RSX shocks, Clifford Matrix RS2 remote remote start/alarm, BF Goodrich All Terrain T/A ko tires, blinker mod, Fusion'd grille, 06 emblems, clear corners, Wet Okole seat covers
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Old 10-03-2006
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just suck the lube out of the diff, that is prolly what the dealer is doing anyway.

also the only additive that i know of is redline. and it can be added any time. but it doest do that much, i have it in mine and didnt notice any difference.
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Old 10-03-2006
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A good coolant additive is Leading Edge you can find it at O'Rielly Auto Parts! The additives are suppose to make it run a little cooler.
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Old 10-03-2006
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A small hand pump can be used to change the lube in your front diff. They cost about 7 bucks and they're a great thing to have in the shop.
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