has anyone changed out their tranny fluid? I'm thinking about switching over to amsoil for my engine, now that it's broke in and may use it in my tranny- I know GM also makes a product for their manual transmission that's supposed to be pretty good.. Any insight?
Tranny Fluid Upgrade
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4,122 Posts
Redlines ATF D4 fluid.
tennisguy,
When I had my '99 Cobra, the thing to do was to switch out the Ford factory-fill tranny fluid for GM's SYNCROMESH trans fluid.
A better product by far! Buttery-soft shifts almost immediately after.
Keep in mind that this was with the T-45 tranny, and our Bullitts now have a new transmission---with it's own set of grind and clunk problems. I wouldn't think that there'd be any problems with doing the same thing on our Bullitts.
Ask around.
When I had my '99 Cobra, the thing to do was to switch out the Ford factory-fill tranny fluid for GM's SYNCROMESH trans fluid.
A better product by far! Buttery-soft shifts almost immediately after.
Keep in mind that this was with the T-45 tranny, and our Bullitts now have a new transmission---with it's own set of grind and clunk problems. I wouldn't think that there'd be any problems with doing the same thing on our Bullitts.
Ask around.
Joined
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2,347 Posts
i used redline d4 atf, don't notice a difference
Joined
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2,347 Posts
i used redline d4 atf, don't notice a difference
Joined
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337 Posts
Redline A4 DTF improved the shifting in my replacement transmission (which did not grind like the original). There is probably a limit to the improvement based on how far out of spec the transmission is at the time the improved fluids are used.
If the transmission is "notchy", but not grinding, then Redline can help to improve shifting to the point of "butter". Mine's still notchy 2-3 sometimes, but acceptable.
The old transmission was so far out of spec that it would grind from 1-2 and sometimes pop out of gear. The old transmission also felt looser. They rebuilt it and there was no difference (the clunk was fixed, but not the grind, and it started leaking).
The replacement transmission works good enough, although not as smooth as my wife's 2002 Mazda Protege's (which has much lower stress requirements). Tremec transmissions are used in all domestic high-perf sports cars, and there is certainly some build variance. If you want one that doesn't grind, keep taking it back until they get it right. Grinding is never normal, and will result in accelerated synchro, bearing, and gear wear.
<font size=-1>[ This Message was edited by: DrivingSimulators on 2002-02-09 00:49 ]</font>
If the transmission is "notchy", but not grinding, then Redline can help to improve shifting to the point of "butter". Mine's still notchy 2-3 sometimes, but acceptable.
The old transmission was so far out of spec that it would grind from 1-2 and sometimes pop out of gear. The old transmission also felt looser. They rebuilt it and there was no difference (the clunk was fixed, but not the grind, and it started leaking).
The replacement transmission works good enough, although not as smooth as my wife's 2002 Mazda Protege's (which has much lower stress requirements). Tremec transmissions are used in all domestic high-perf sports cars, and there is certainly some build variance. If you want one that doesn't grind, keep taking it back until they get it right. Grinding is never normal, and will result in accelerated synchro, bearing, and gear wear.
<font size=-1>[ This Message was edited by: DrivingSimulators on 2002-02-09 00:49 ]</font>
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