RE4R03A swap

[1990_q]

Will my car run different if I swap my 91 Q trans for the RE4R03A from the 300zxtt.

[elwesso]

The gearing is slightly different but should work otherwise. I believe you'll need the Q torque converter as well as the bell housing

[1990_q]

Will it mount right up, with the Q bell housing. Since the ZTT is a sports car, it should shift strong right., or will any other year Q trans work...

[elwesso]

90-95 trans are interchangeable, 94-95 has a little different gearing than 90-93 but its close.

[IThaJ0kaI]

Would there be any benefit to swapping to a Z trans?

[1990_q]

Cheaper then a Q trans

[IThaJ0kaI]

Oh ok, I have thrown probably 6 good g50/y33 transmissions away because I had no use for them =\

[1990_q]

U dont have any more or can get one cheap...

[maxnix]

Would there be any benefit to swapping to a Z trans?

None whatsoever.

[Infinitiguy19]

I am pretty sure the 1990-1996 Q45 and 1990-1996 300ZX Twin Turbo (TT) share the same Automatic Transmission (A/T). I have no idea why anyone would consider it a upgrade to swap transmissions between the two. The 1990-1996 300ZX TT has the 1990-1993 Q45 A/T through its run. The older Q45 transmission has better acceleration at the expense of top speed rpm's and vise versa for the 1994-1996 Q45 A/T.