Topic: R154 Transmission Questions (AX15 Input Shaft?)

[candidochris]

Hi all, I'm working on a project to mate a Toyota Supra R154 transmission to a Dodge Neon SRT-4 motor using a 2.4L Jeep Liberty bellhousing. Everything bolts up, but the input shaft does not reach the pilot bearing in the block. I can probably mill the bellhousing to make this work, but I wanted to see if anyone had any ideas. It's a little less than .25" different.

I looked into swapping an AX15 input shaft onto the R154, since they are very similar; however, from what I understand, the AX15 is a 29 tooth gear and the R154 is a 34. I also know some of the Supra guys have been swapping over the an Aisin AR5 from a GMC Colorado, no one seems to have compared input shafts to see if the AR5 shaft will work in an R154 though.

I have heard rumors about a 4WD R154 with a longer input shaft, but I have not seen anything to support this.

If anyone knows of a longer input shaft that will fit on an R154, or has any other suggestions on how to make this work, I'm all ears. It's a small difference, but I'd like to avoid milling the bellhousing.

Thanks,

Chris

[H8PVMNT]

Man if it's only 1/4" I'd say milling the bell housing is your best bet.

[kneedownnate]

I have heard rumors about a 4WD R154 with a longer input shaft, but I have not seen anything to support this.

R154 is 2wd supra tranny, R151 is the 4wd truck version.  I'd say mill it 

[Zs Confederate Toy]

Milling it sounds like the easiest way about it

[emsvitil]

Machine an extension piece for the input shaft that slips over the existing shaft nipple, and then slips into the pilot bearing.

[candidochris [OP]]

Thanks for the input guys.

emsvitil -- does that put any added strain on the input shaft?

[emsvitil]

I don't think it would......