[Muscle GT]

hey guys, i just got a "new" used engine and tranny put in my 02 gt(has 3k miles on it) and i drove the car away from the shop today and noticed that when i went to shift into 2nd gear it started grinding. The mechanic said that he thinks the oils just need to work themselves around the tranny, as they were just replaced. Any idea what it could be from? Thanks, Max

[SSChris NY.]

Could be Bad Synchronizer, what trans is it? T-45 or T-3650, also what gears are grinding?

[Muscle GT]

Funny you say that, I kinda thought it might be the syncro too..i would imagine its the T-3650, because its out of an 04 gt (I think all the late model 01-04 gts are the 3650). Only 2nd gear is grinding..no others

[SSChris NY.]

Originally Posted by Muscle GT

Funny you say that, I kinda thought it might be the syncro too..i would imagine its the T-3650, because its out of an 04 gt (I think all the late model 01-04 gts are the 3650). Only 2nd gear is grinding..no others

2nd Gear Syncro is bad and need to be replace before U do anymore damage to the tranny, and yes it's a T-3650, it's not an expensive repair, U just need to find the right Shop to get it fix, Good Luck

[Muscle GT]

ok thanks for the advice. I just dropped a grand today for the installation on that thing...how much more am i looking at for this syncro problem? and will i need a rebuild kit or something? I do not know much about syncros...

[SSChris NY.]

Originally Posted by Muscle GT

ok thanks for the advice. I just dropped a grand today for the installation on that thing...how much more am i looking at for this syncro problem? and will i need a rebuild kit or something? I do not know much about syncros...

Check with Your local tranny shops, or Call Justin over at Huntington Transmission in long Island, he's a mustang brother as well and he'll stir U right, his numbers are 631 549-5225 or 631 988-8136, Tell him SSChris NY. from SvtSnake send U his way lol, Good Luck Bro

[97NYstanGT]

i actually have a similar problem, if i shift into 2nd like in a race it grinds, but if i take my time and shift normally it shifts without grind.

[SSChris NY.]

Originally Posted by 97NYstanGT

i actually have a similar problem, if i shift into 2nd like in a race it grinds, but if i take my time and shift normally it shifts without grind.

Your 2nd. gear syncro mabe be starting to go as well

[Raymo]

Syncro's, always a problem . Have it repaired soon. You don't need to be putting all that brass in the oil.

[Muscle GT]

thanks guys for the help..turns out that the place i got the engine/tranny from is sending me another transmission free of charge. Only thing is that i gotta pay for install..again

[MineralGray02K]

The 3650 is known for the 2nd gear syncro issues

[Pitbull Performance]

All of you sound like your on the right track as to what could be wrong. Although with manual transmission you never know the hole story till you open them up. It could be a 2nd gear syncro problem but that may have came from a bent shifter fork, worn shifter fork pads, 2nd gear slider keys and the list go's on all of these things i have seen first hand wile rebuilding manual transmissions.

[EHA Racing]

Originally Posted by Pitbull Performance

All of you sound like your on the right track as to what could be wrong. Although with manual transmission you never know the hole story till you open them up. It could be a 2nd gear syncro problem but that may have came from a bent shifter fork, worn shifter fork pads, 2nd gear slider keys and the list go's on all of these things i have seen first hand wile rebuilding manual transmissions.

+1 It's very unlikely the syncros are going just because of bad luck. Unless you are ripping gears all the time you shouldn't have these issues. Try to find the cause of the problem or it will keep happening. BTW: I've wasted every 5 speed I ever put in a Mustang. There's a reason for that though!! LOL