alrighty, well my truck has 40,000 miles on it and ive only changed the trany fluid once...and ive kinda beat it since then do do ya think i should change it again?...sythetic too?

next about my rear end...dont think its ever been changed, so i was thinking maybe i should just to freshen it up...couldnt hurt i guess

but yea i was just wondering...cause its been in the back of my mind, and id like to do somthn about it if i should

Thanks!

 

The rear end should be fine. Only reason I could see to change the oil would be if you have driven through some very deep water and put the breather under water, but other than that you really shouldn't ever have to change it. Do you have a manual or auto? If you changed your tranny fluid, you shouldn't need to for quite a while, especially if you have a manual.

 

no water deep enought to suck any...i thought that might be the only thing..thanks

its an auto...and i really havnt babied it...hard on her sometimes, and it was changed way back at like 10,00 i think after a good break in period

 

It wouldn't hurt to change the trans fluid then... rear end should be solid...

 

thanks alot...yea i suppose i will the...

ummm do you recomend a great tran fluid to use?...and id like to use full syn maybe

 

amsoil synthetic tranny fluid. period. speaking of which, i need to do mine too. im 5k overdue ;o)

 

sweet thanks...i'll hit up Bob

 

I would run w/e is specified in the owners manual. Any name brand ATF is good stuff.

 

I personally wouldn't run the stock Motorcraft fluid longer then 20-25k miles. They call for a change every 30k miles in the maintenance book. Go with Amsoil ATF...best out there IMO.

Rear axle fluid should "technically" last for 100,000 miles...again, I wouldn't run the stock stuff that long. Doesn't cost that much to change it out and doesn't hurt a thing, only helps (I'd change it at 40-50k w/ some Amsoil synthetic...).

 

You guys are bass ackwards on the whole service thing. The differential should be serviced every 15K and the trans can go 30 or 60K depending on how hard you drive it. Regular fluid is fine on the transmission since synthetic and all is a waste of money in it since you'll never get all the regular fluid out.

=john=

 

i change all my stuff to AMSOIL as soon as i can afford it, just to be on the safe side, but if the stock conventional oils are changed as often as they should be, they will be OK. synthetic is always the best way to go though, IMO

 

THIS is all wrong

the rear end fluid is synthetic from the factory, its rated to go 100k miles, but i would change around 50k or so, or whenever you go through deep water. the transmission needs to be serviced about every 20-25k miles, if you wait until 60k, then DONT do it at all.

The ONLY right way to change the ATF is with a flush at a shop, and then all the fluid will be removed. in any case AMSOIL as well as other synthetics will mix with standard fluids. You wont get the full benefits of the synthetic but it will have slightly better protection than conventional alone

 

The transmissions call for a synthetic based ATF. NOT GEAR OIL. Read the owner manual. The transmissions clearances and tolerances are setup to operate with a certain weight and grade of ATF. I just changed the oil in my manual @ 50K... I've never changed the oil in my rearend, just topped it off with 80W90 gear oil after I replaced the pinion seal. Get your stuff straight before you put out some bogus crap...

 

alrighty..so..

i proly should change mt ATF because im at 41k...and im planning on amsoil, from wholsalemn's shop, (dont know if he flushes or not?) but yea i'll change it cause ive beat the crap outa it a few times..x10 lol

 

dont know if wholesalemn really has a shop, i think charles is all online. i would just call around to a few shops and get quotes for labor on a flush, tell them your bringing your own fluid. will you be getting the amsoil from wholesalemn? it may be cheaper through me with no tax or shipping

 

he does have a shop, at his house in blaine MN. so i can drive about 5 miles and have it done! sweet deal..he has it all, oil change for free, i pay for oil, 8 a quart