Hello Members,
While I take car of my brothers 64 Thunderbird I myself own a 1967 Chevrolet Impala. The previous owner had the rear differential changed to a 12 bolt positraction unit. The rear end does have GM stamped on it. My question is: Do I need to add a limited slip additive to the new rear end fluid that I'm putting into it? Thank you for your help.
Sincerely,
Patrick
While I take car of my brothers 64 Thunderbird I myself own a 1967 Chevrolet Impala. The previous owner had the rear differential changed to a 12 bolt positraction unit. The rear end does have GM stamped on it. My question is: Do I need to add a limited slip additive to the new rear end fluid that I'm putting into it? Thank you for your help.
Sincerely,
Patrick
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