Synchro troubles

Pallgor

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My syncros are taking a dump. I’ve heard there’s an additive that I can put in to buy me some time before I make my decision on what I’m going to with the trans. Is that true?
 

lwarrior1016

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I don’t know about an additive but valvoline or royal purple Synchromesh works really well. What year is your car, and what trans do you have?


What makes you say it’s synchro trouble and not a clutch adjustment issue?
 
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Pallgor

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96 gt. 90,000 It “zings” between gears and the car was set up for drifting and I was talking to mustang guys and they feel it’s most likely due to romping in it. He said worldclass t5 are good but can’t take a beating like that
 

lwarrior1016

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96 gt. 90,000 It “zings” between gears and the car was set up for drifting and I was talking to mustang guys and they feel it’s most likely due to romping in it. He said worldclass t5 are good but can’t take a beating like that
If you have a 96 gt, it’s a t45 not a t5. The zing kinda does sound like too much gap on the synchro blocker ring. Give the new oil a shot and see how it treats you.
 
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Pallgor

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Ty. I’m gonna give it a try. Better than spending a ton of money if I don’t have to
 

badass98svt

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GM Synchromesh is another great one for the T45.

Do you have an aftermarket shifter?
 

Notthenow

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If it has newer synchos (it was rebuilt before) the carbon fiber material on the synchros can respond well to some friction modifier like used in rear axles for the carbon fiber clutch packs. As I have read, the products like synchromesh have a small amount in them.
 

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