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#1
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W108 Gearbox Fluid
Hi, I am going to change the gearbox fluid on my 1969 280S with a 4 speed manual gearbox for the first time. It has the later side cover G76/27 box.
Question: Am I reading this right that I put ATF in it? It’s a new one on me! Thanks all! |
#2
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Yup, ATF type "F", for early model Fords ('60's and '70's).
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.” ― Brian P. Cleary, You Oughta Know By Now |
#3
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I'd read that as Dexron since Type F is generally specified as such.
Type F has a higher friction coefficient than Dexron so it works with the metallic clutch plates in a Ford auto trans. In a manual trans, the synchronizers are generally cone shaped clutches that bring each gear to the same speed as the shaft. On a trans that is worn, too slippery of a fluid can cause the syncro to slip and gears to grind. Moving to type F might help this type of situation. Thicker oil can help a worn trans by causing more drag. ATF is about a 5 weight so moving to a motor oil can help, some brands of cars did spec motor oil so this isn't something new. |
#4
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Thanks, the previous owner just wrote the word Castrol in his records. The gearbox has 270k miles total, about 66k since it was rebuilt.
Last edited by Rook; 08-21-2018 at 11:58 AM. |
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