[fordrarities]

had the car out today, its a 90GT Manual. i noticed it making some clanking sound. so after some more inspection and having a few buddies look at it im pretty confident the rear is shot. (there seems to be alot of play in the drive shaft esp towards the rear end)

so i have decided to go ahead and rebuild the rear.

My question: What would be the best gear? Whats in it doesnt seem bad, but i havent been in a fox with different gears.(i think mine are stock)

And where would be a good place to get all rebuild parts for a good price, but quality of course. i think i need a carrier and....anything else you guys would recomend?
thanks for the help

[saldoggs]

that depends on what you want to do 411 if your gonna be n/a and just car about the 1/4 mile 373 are good to not bad on the highway and still good performance then u can get 355 better on the highway with still better then stock take off

[Devine]

Have you checked your rear u-joint?

[sonicblue]

i wouldnt be so quick to tear into that rear, it might not be the problem

[86_Notch]

Originally Posted by Devine Have you checked your rear u-joint?

+ 1 on the rear u joint

[sonicblue]

there is suppose to be some slack in the drivetrain are you sure you are not just hearing that and feeling that?

[fordrarities]

i hear it more then i feel it, but i can feel like a clunk towards the back of the driveshaft/rear end.
the drive shaft is good-aluminum aftermarket one
i know for sure there is a good inch of rotational movement, and i can slightly hear the same sounds when im under the car rotating the drive shaft around

not sure, all help is appreciated-thanks

[fordrarities]

the ujoint seems to be new, i just got the car a few weeks ago so im not positive on my answers

[sonicblue]

i think its just drivetrain slack. when you get on and off the gas sometimes you will hear a clunking which is just normal slack in the drivetrain

[p-351]

Put the rear up on jackstands to take any load you have on the driveshaft or pinion. Then rotate the driveshaft back and forth to see where you are getting your slack from.

[Nice 5.0]

Make sure your drive shaft bolts are tight. I had the same problem and found them loose. lessoned learned I always use lock tite now.

[86_Notch]

Originally Posted by Nice 5.0 Make sure your drive shaft bolts are tight. I had the same problem and found them loose. lessoned learned I always use lock tite now.

i totally forgot but i had the same problem, i used to hear a clunking sound and there was a small vibration turned out to be loose bolts, your answer reminded me of that