GTR/Z32 Transmission Comparison

[Raxephon]

David started a thread that I had great interest in but unfortunately it got locked due to some new member being a an a$$.

So, to make it where the info he posted up can be added to, I'm copying/pasting from his locked thread to this one and will be adding to it later.

Everyone/anyone who has anything decent to contribute please feel free to do so.

The R32/R33 GTR transmission share a big similarity with VG's 5 speed and I believe it's 100% interchangeable for case swapping.

Facts

1. VH bolts up to VG flywheel and of course it's clutch but is the spline the same? Yes it is it's 24 spline 1'' just like a 300zx's

2. If inputs shafts are the same length you could possibly use an adapter plate mounting for VG to VH just by swapping cases.

3. Using a Z32 starter would be better since there are available in the US

"Just the facts mam, just the facts" - Joe Friday
Modified by anlasak at 3:20 AM 9/19/2007

[David Steele]

Thanks for the interest.

I was going to bring the topic back up when I got my hands on a junked 300zx transmission to give the topic a much much more solid base to stand on .

[David Steele]

With out the captions for the pictures it's tricky to tell what from what as follows :

300zx

GTR

300zx

GTR

300zx

GTR

300zx

GTR

[Raxephon]

With out the captions for the pictures it's tricky to tell what from what....

Sorry about that.

I did a quick copy/paste in the middle of waiting for this 7MGTE cylinder head to cool so I wasn't as thorough as I would have preferred.

[David Steele]

The picture is a bit blurry but the input shaft before it slips into the integral casing measures 3.375'' or 3 - 3/8'' Anyone with a VG transmission could be a big help here with just a tape measure.

[pcproa]

Hey David,

How do you plan on working the front differential from an RB into the VH block/oil pan?

I'll try and take some measurements of the input shaft on my VG transmission tonight along with some pictures.

[David Steele]

Hey David,

How do you plan on working the front differential from an RB into the VH block/oil pan?

I'll try and take some measurements of the input shaft on my VG transmission tonight along with some pictures.

I think this is the most asked question on my setup.

No it will use an R230 the engine will be moved back behind front wheels centerline. We'd greatly appreciate the VG input shaft measurement length.
Modified by David Steele at 7:00 AM 9/21/2007

[tmorgan4]

I've got one I can measure too, but it will be a few days until I get back to the shop. Here's the only picture I have but they look similar.

[Clifton]

I don't know if it is known on this board, but you can swap the bellhousings between the RB25, RB26, and Z32 transmissions.

http://forums.hybridz.org/showthread.php?t=119041

I have a Z32 trans apart is you need any measurements without the front case on.

[David Steele]

I don't know if it is known on this board, but you can swap the bellhousings between the RB25, RB26, and Z32 transmissions.

http://forums.hybridz.org/showthread.php?t=119041

I have a Z32 trans apart is you need any measurements without the front case on.

I need this length here measure it to the point where its covered by the front case.

[T45]

I measured my Z32 NA 5 speed and it is exactly 3 3/8 from the end of the shaft to where it is covered where it enters the snout on the trans.

[David Steele]

I measured my Z32 NA 5 speed and it is exactly 3 3/8 from the end of the shaft to where it is covered where it enters the snout on the trans.

Haha that means I can use any adapter plate made with a VG case swap WOOT this is good news to me!

[JDogg95]

This thread rocks! With the above pics I am not afraid to take off the bell housing to take to Mazworx. Thank you very much.

[BUCKY01]

would this also work for the RB25DET automatic transmission from an R34 GTT?

[David Steele]

would this also work for the RB25DET automatic transmission from an R34 GTT?

I have no idea but as for this GTR vs z32 transmission I cannot use it due to the starter being in the way of the driveshaft I'll have to go by other means.

[Raxephon]

I have no idea but as for this GTR vs z32 transmission I cannot use it due to the starter being in the way of the driveshaft I'll have to go by other means.

Why not just use the ring gear off the VH45DE flexplate and use the original starter intended for the motor?

[David Steele]

Why not just use the ring gear off the VH45DE flexplate and use the original starter intended for the motor?

Look at my signature at the driveshaft it is very VERY close to the clutch slave cylinder.

Do you see what your saying? You have to be there to locate and centers to see what the drive shaft intersects. To have a no 0-1 angle in my cardan U joint it will intersect the engine mount bracket as well the original area for the starter cannot be used.

I will have a z32 starter flange made and machine the spot to the other side for the flywheel to mesh with.

[T45]

Almost seems easier to just get a JDM VH41 block with the starter on the opposite side and drop in the 45 internals.

[David Steele]

Almost seems easier to just get a JDM VH41 block with the starter on the opposite side and drop in the 45 internals.

Yeah may seem that way easier but being able to place the starter anywhere you want on the bell can be as well.

[tmorgan4]

David and others who contributed to this thread....Just wanted to say thanks for all of the good information. It confirmed I could swap a Z32 bellhousing onto my 4wd transmission. Worked perfectly.