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Very easy to identify which revision of transmission you have. Even in the car, a clearly identifying part is visible.
BTW, I REFUSE to use that W s*** to name the 2 revisions of that product. I'm guessing they let the Marketing Dept's summer intern pick the "trendiest", "hippest", most "fashionable" term s/he could think of; and the best they could do was to copy that disgusting TQM 6-sigma "lean" BUZZWORD that was SO STUPIDLY POPULAR in the late 80s. Fortunately, like other corporate BUZZWORDS like "run it up the flagpole", "synergy", "take it offline", and other clichés that just make me PUKE will eventually do, it faded into well-deserved oblivion.
If it's the 1st design T-5, it will have the straight roller bearings on the countergear. Front countergear bearing looks like an upside-down freeze plug.
2nd design got tapered rollers with preload. The front countergear bearing looks like it was a depressed center, and has a sort of dull or matte finish.
1st design on top, 2nd below.
You cannot turn one into the other. ABSOLTUTELY NOTHING WHATSOEVER interchanges between them, except for the bolts, the spring on the reverse/5th shift rail and MAYBE the rail itself (not sure), the extension housing bushing, the shifter detent parts (block, ball, spring, cup), the clutch gear bearing retainer, the clutch gear bearing, and the main bearing.
Or maybe I should say, you can; but only by using Sofa's Magic Patented Exclusive 2-Step Method:
.
Sell 1st design transmission
Apply (the very little) cash you get toward buying 2nd design one
Regardless, you can't put the gears for one into the other style of case.
If the transmission "leaks heavily", it's probably the 1st design, and the reason it leaks, is because the case is destroyed. The metal is weak around the front countergear bearing, and it stretches across the front right there, which makes the hole oval instead of round. You can see in that photo above, the stain below and to the left of the bearing; that's the fluid that leaked out of that one. Worse even than the leeeeeeek, the stretching allows the clutch gear and countergear to misalign, which causes them to EAT each other as though for lunch. If that's what it is, and that's what's wrong with it, DO NOT spend even ONE EURO on it. Throw it in the trash and move on to something halfway decent.
If the case is snookered and leaking, it's likely the internals have started eating each other. At that point it's not worth throwing any money at a T-5 regardless of whichever revision you have IMO.
If the case is snookered and leaking, it's likely the internals have started eating each other. At that point it's not worth throwing any money at a T-5 regardless of whichever revision you have IMO.
The transmission shifted excellent though? No grinding etc, weird noises.
Post 2 photos of it: one looking at the bottom front surface of it where it bolts to the bell housing and is exposed just below the BH, and one showing the leak. Or, if you have it out, show the same photo as mine, and one of the leak.
Shifting is largely irrelevant. Almost always, when a transmission has shifting problems, the cause is the clutch, not the transmission. Driving it like that for a long time will eventually cause transmission issues however. There are exceptions of course but this is the general rule.
