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Old 08-28-2015, 08:24 AM   #27
Charlie ny
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Join Date: May 2010
Posts: 3,019
Default Re: Why is it jumping out of second?!

T.W.,
All good advice here....end play and incorrectly fitted sync rings can cause
the jump out. 2nd gear has a thin wall bushing which is always worn way oversize
and this is also, in my opinion, a cause of jump out. It's best to make sure the shaft
is straight and round on the 2nd gear end then rebush 2nd gear gear for a .0015
running fit on the shaft. It's useless to install a NOS 2nd gear with a factory sized
bushing and expect it to do it's job when installed on a worn shaft.
When you think about it 2nd is ALWAYS spinning and the output shaft is always turning in it except when the trans is in second gear, billions of revs.
It appears as though your syncro rings are dragging given the yellow gear
oil. Be sure to check the 3 slots the keys register in.....the dimension from the tooth side of the ring to the bottom of the slot must be .302 + or - .002. It's good to check the fit of the rings on the input shaft/gear and 2nd gear. The gap between the tooth
faces should be about .030.
Best of luck..........next time I'm down your way the shrimp and beer are on
me !
Charlie ny
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