rear end is toast at least i think...

Willis_98GT · Aug 12, 2007

uh. well all of a sudden, whenever i'm stopping from ten miles a mile to zero it makes a popping sound that goes in motion to the rear wheels turning..

still drives fine... but people are telling me my rear is about to toast...

so i guess my question, is if i get new gears with a rebuild kit will that fix my popping, or am i going to have to get axles and shit?

quickstang_1994 · Aug 12, 2007

more than likely you are hearing the spider gears get this fixed asap and it will be a cheap fix if not its going to get pricey.

scarface · Aug 12, 2007

yeah, if that locks up if could cause major damage to you and your car.

Willis_98GT · Aug 12, 2007

yeah, well the spider gear is going to be really expensive?? god!! so if i just get the a new gear set it won't be fixed, i was actually just about to get new master rebuild kit and a set of 3.73s.... that wouldn't fix my problem?? i'm screwed. i'm on such a tight budget as it is....

quickstang_1994 · Aug 13, 2007

as long as its the clutch packs its like $90

Willis_98GT · Aug 13, 2007

well i'm clueless. i guess i'll prob be taking it by a shop of somesort on monday.

Willis_98GT · Aug 14, 2007

bump...

today i went to have my new toyo proxys put on the ass when i noticed that my rear is leaking... its not a horible leak. but the bottom of the differential cover is nasty lookin... perhaps if i pop the cap off get some new gear fluid and reseal it. my problems would be better, or did i already screw myself?

scarface · Aug 14, 2007

if it is already leaking take the cover off and look for pieces of metal in the housing.

Willis_98GT · Aug 14, 2007

the fluid is going to drop out whenever i take the cover off?

which fluid would you guys reccommend to put in there? a royal purple synthetic...

also... i want to do gears this friday. i've chosen my ratio to be 3.73.. but is their a difference between ford racing and motive gears?? or should i just get frpp?

Passenger · Aug 15, 2007

I'm willing to bet anything, that if your housing is leaking like you said, then the noise is being caused from low gear oil. Yes, the fluid will drain out when you take the cover off. Take off the bottom bolts at first, pry the bottom of the cover open and let it drain out before you remove the cover. As for gear oil, I'm a tightwad, and was on an extremely tight budget so I bought Valvoline 80w90 gear oil. Don't forget your friction modifier!! My 95's rear took about almost 2qts (64oz) + the 7oz bottle of friction modifier. Fill it with one bottle of gear oil, then add the friction modifier, and continue adding gear oil until it over flows. I'd recommend a pump for filling, because the shit tastes awful and doesn't flow easily.

scarface · Aug 15, 2007

Passenger said:
I'm willing to bet anything, that if your housing is leaking like you said, then the noise is being caused from low gear oil. Yes, the fluid will drain out when you take the cover off. Take off the bottom bolts at first, pry the bottom of the cover open and let it drain out before you remove the cover. As for gear oil, I'm a tightwad, and was on an extremely tight budget so I bought Valvoline 80w90 gear oil. Don't forget your friction modifier!! My 95's rear took about almost 2qts (64oz) + the 7oz bottle of friction modifier. Fill it with one bottle of gear oil, then add the friction modifier, and continue adding gear oil until it over flows. I'd recommend a pump for filling, because the shit tastes awful and doesn't flow easily.

+1

Jrgunn5150 · Aug 15, 2007

Might wanna check the cover for flatness before you re-seal it. And if you are using it as a jacking point, don't that's how you get a leaky cover :slap:

Willis_98GT · Aug 15, 2007

never did use it for a jack point...

headin to autozone later on

Passenger · Aug 15, 2007

Oh yeah! I almost forgot!

Use black RTV to make a gasket for that rear end cover. Be sure to lay a nice thick bead, rub it with your finger to help distribute it, and then build it back up by putting some more on it to ensure no more leaks!

voidfinger · Aug 16, 2007

why not just buy another rubber gasket? I was thinking of changeing my gear oil soon too since my car has 150k and the oil has never been changed exept once at 29k when the rear went out in it ... "still under 30k warrenty"

but, royal purpal makes a good one right? and what is a good weight and whats the difference between weights and where can i get friction mod? thanks

Willis_98GT · Aug 16, 2007

well i'm screwed... i pulled the drain plug only to find that it had no leak at all...

so now i'm clueless and really screwed...

voidfinger · Aug 16, 2007

Willis_98GT said:
well i'm screwed... i pulled the drain plug only to find that it had no leak at all...

so now i'm clueless and really screwed...

Sorry to hear it dude, so you gonna yank the thing and check if something is bad wrong? is there metal in the oil?

Passenger · Aug 16, 2007

voidfinger said:
why not just buy another rubber gasket? I was thinking of changeing my gear oil soon too since my car has 150k and the oil has never been changed exept once at 29k when the rear went out in it ... "still under 30k warrenty" but, royal purpal makes a good one right? and what is a good weight and whats the difference between weights and where can i get friction mod? thanks

No idea about the weights. Someone told me to go with 75w90, another told me to go with 80w90. the 80w90 was cheaper, so thats what I bought. As for the friction modifier, you can get it at Autozone/Advanced. My local Advanced has idiots working, and none of us could find it. It will be in a blue tube, with a white cap. Trans-X is the brand. It'll say something like Posi-Trac Limited Slip Gear Oil Additive on it.