AE92 GTZ gearbox/ ae101, how do i tell the difference

[crispy'86]

Surely someone should FAQ this, or start a post for it.
I looked at a couple of gearboxes from GTZ levins , before you say it i have clutch plate and input is definitely GZE as it's really thick, and i saw on further looking and measuring that the 2 boxes are different.
**On one box the distance from bellhousing to end casing is 410mm and the end housing is made of alloy like the rest of the box.
** The other box measures 365mm and has black metal end housing. Also the casing is thicker on the alloy end housing (195mm) than the black end housing box (170).
Can anyone shed some light into whether they are definitely GTZ boxes??

[CAMB01]

My gearbox has a black metal casing on the back of it and its a GTZ gearbox, with an LSD.

[bluemaumau]

i have a ae101 and early ae92 e series boxes, and yes only the ae101 has the black on the end. the ae92 box is about 5 cm longer and obviously the plugs are different

[crispy'86]

Hm now i was thinking to myself it's probably an ae101 with the black end casing. And are they definitely the boxes with lsd?? Because i know it may be worn etc etc but it doesn't have the hex running through the axle shaft housing to indicate it would be

[CAMB01]

Mine cant be an ae101 as its in my ae92 FX, and ive heard ae101 gtz boxes wont go in an ae92 wothout driveshaft modifications. and my driveshafts are completely normal.

[bluemaumau]

you need the ae101 shafts as they go in furthur (into the box)

[Bazda]

the ae101 box will have an electronic speedo sensor, not a mechanical, thats the easiest way to tell.

[bluemaumau]

winner^

[crispy'86]

the ae101 box will have an electronic speedo sensor, not a mechanical, thats the easiest way to tell.

That's a bit hard when the two boxes don't have the speedo sensor in them

[Bazda]

the ae101 box will have an electronic speedo sensor, not a mechanical, thats the easiest way to tell.

That's a bit hard when the two boxes don't have the speedo sensor in them

ok look down where the shafts go in, the ae101 box should have a hexagon shaft through the middle and the ae92 box you will beable to see straight through with no hex bar.

[crispy'86]

the ae101 box will have an electronic speedo sensor, not a mechanical, thats the easiest way to tell.

That's a bit hard when the two boxes don't have the speedo sensor in them

ok look down where the shafts go in, the ae101 box should have a hexagon shaft through the middle and the ae92 box you will beable to see straight through with no hex bar.

No, had a look at weekend and they both don't have the hex through them so the ae101 box mustn't be lsd

[Bazda]

nope it wont be an ae101 box.

[crispy'86]

nope it wont be an ae101 box.

Okay so i read in asnother post some are lsd and some aren't?? Whay would there be one box with alloy end case and the other metal and that one thinner???

[IH8TEC]

nope it wont be an ae101 box.

Okay so i read in asnother post some are lsd and some aren't?? Whay would there be one box with alloy end case and the other metal and that one thinner???

the material of the 5th gear cover part of the case does not mean anything. my non lsd gbox had the alloy one, so did barry's ae101 lsd box.

as for thickness, the mr2 lsd box i put in my car seemed to be bigger, and heavier, and turned out to have thicker gears in it than the ae92 box.

[crispy'86]

nope it wont be an ae101 box.

Okay so i read in asnother post some are lsd and some aren't?? Whay would there be one box with alloy end case and the other metal and that one thinner???

the material of the 5th gear cover part of the case does not mean anything. my non lsd gbox had the alloy one, so did barry's ae101 lsd box.

as for thickness, the mr2 lsd box i put in my car seemed to be bigger, and heavier, and turned out to have thicker gears in it than the ae92 box.

maybe difference between early and late boxes??

[Bazda]

every ae101 gtz box i've seen has had the hex bar through the middle, and every ae92 box there is no bar.

[crispy'86]

every ae101 gtz box i've seen has had the hex bar through the middle, and every ae92 box there is no bar.

That's handy to know then. I suspected the 101 boxes had the hex, as for ratios they should all be same in ae92 gtz's and even if the boxes are diferent thicknesses axle length going to be a problem if say someone got the shorter length box zand used normal gtz axle shafts

[Bazda]

both the ae92 and ae101 gtz boxes are the same physical size, its only the aw11 supercharged box thats got a slightly bigger housing and diff gear ratios to the fwd boxes.

[crispy'86]

both the ae92 and ae101 gtz boxes are the same physical size, its only the aw11 supercharged box thats got a slightly bigger housing and diff gear ratios to the fwd boxes.

Hmmm, you have the ratios for the aw11 and ae92 s/c boxes?? and pics to determine?

[Bazda]

i can have pics later on but ratios are here:

1st
2nd
3rd
4th
5th
final

AW11 Mr2 s/c
3.32
1.91
1.26
0.92
0.73
4.29

can also giv u the speed differences in both boxes with any size tyre u want


gtz levin
3.21
2.04
1.33
0.97
0.82
3.94