my 78 280z came auto,I changed to 5 speed.? i,m changing rear-end to 3.90. I how 78 auto,s come with 3.54 r180,on 240z you have to change musach bar and rear axles.since manual 280z came with r200 is it possible i can use my musache bar and rear axles.

 

i hav noide.a wha u ju'st sed.

 

sorry i have a 1978 280z with r180 rear end.The car came automatic,I changed to 5 speed i want to change rear end from (r180 3.54 to r200 3.90). ? is will i still have to change musache bar and axels since it is a 1978 280z.

 

Mustache bar yes. Axles no.