R32 Rb20det Gearbox Shifter Height Relative To Floorpan

[Cubes]

Hey ppls,

I've recently dropped the rb20det gearbox out of my factory manual R32 and fitted up an Rb25DET gearbox.

One measurement I assumed would be ok was the height/position for the rear of the box.

With the r32's std gearbox cross member bolted up the rear of the rb25det gearbox fouls with the floor pan as the 25t box has a slightly different' mounting height.

If any one has their shifter boot off and fiddling around could you please take a measurement of how the very top of the shifter housing (as marked in the attached pic) is positioned relative to the floor pan.

With it all bolted up mine sits 25mm above the floor pan; I can only just get the shifter boot over the shifter but can't shift gears as its too tight.

Any held would be greatly appreciated.

[QWK32]

i've only got the standard rb20 box but mine sits about 10-11mm below the floor pan. hope this helps.

Edited October 8, 2007 by QWK32

[Cubes]

Champ.. I'm after the rb20det box height as thats how I wish to setup the rb25 box.

So you measured or was it a bit of a guesstimate?

Either way I vaguely remember thats how my rb20t box was sitting also.

Looks like I need a 35mm Spacer :S

[QWK32]

nah, measured it. got my car apart doing work on it so just nipped out and took a quick measurement.

[Cubes]

Thanks. Much appreciated.

I was hoping some one would have their car apart.

Now to see how the tailshaft lines up with it dropped down 35mm..

[Cubes]

Pushing my luck a little.

If the cars on jack stands.

Any chance you (or any one) can grab a measurement from the gearbox/tailshaft dust shield to the floor pan?

The shield where the tail shaft yoke slides in to the gearbox.

I'm unable to compare the difference between the two box's as I got rid of the 20t box.