Rear end dope replacement/ HELP!

Mystic1688

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96 Cobra 3.73 gear

Real quick! i need to know what type of fluid (weight) to put in the rear end, plus the additive if needed, im getting 20 different answers on what to use.
 

Phoenix0783

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75w90. If it's limited slip, which it should be in a Cobra, you'll need friction modifier. I've always used the ford racing friction modifier.
 

RichV

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Valvoline 75/90 LS is what I use. No friction modifier. Guys say to still use the additive, I never have.
 

Mystic1688

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Wow.... today has been awesome i had a little rear end/trans noise/vibration (found out i didn't put my drive shaft in right) today so i pulled it into a decent shop around my town i told them the problems i had after changing the fluid well ,the guy told me i might need to check the trans fluid (t45). This is were it gets good! when he was checking my fluid levels i noticed he was having a difficult time, so i jumped under the lift and found he was backing the reverse pivot bolt out. he swore it was not the pivot and left it half out. I tried to leave it wouldn't go in reverse convinced him to throw it back up and screw the bolt in and i have reverse back. would this cause any damage what so ever should i be worried?
 

lutter94

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sounds like they owe you a rebuild. I have no idea if it is damaging or not, but i wouldn't be pleased......
 

DavidBoren

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I don't know if it can cause any damage, but if it did/does, they owe you a new transmission... I wouldn't trust them to rebuild it if they can't even check/change the fluid correctly.
 

96blak54

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Hack shops? Parts swappers? Im sorry your car had that horrendous experience while you watched in pain.
 

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