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4 speed

Posted By: GardnersGotCudas

4 speed - 12/28/15 03:02 AM

what gear oil should I run in 72 charger 4 speed should I use gl 5 or gl 4 thanks
Posted By: Pacnorthcuda

Re: 4 speed - 12/28/15 03:05 AM

GL-4. Do NOT run GL-5
Posted By: GardnersGotCudas

Re: 4 speed - 12/28/15 03:06 AM

what is the different
Posted By: EWJ

Re: 4 speed - 12/28/15 03:08 AM

Originally Posted By GardnersGotCudas
what is the different


GL-5 is not good for brass synchros.
Posted By: therocks

Re: 4 speed - 12/28/15 01:42 PM

Ive run nothing but 89/90 gear oil in mine since 69.Never a problem.It came with it so thats what I use.You will get a lot of different answers.Rocky
Posted By: JohnRR

Re: 4 speed - 12/29/15 06:30 PM

Originally Posted By GardnersGotCudas
what gear oil should I run in 72 charger 4 speed should I use gl 5 or gl 4 thanks


Use castrol syncromesh , it is made for transmissions with brass rings
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