soupcan

Any GTS owner want to swap? That gear in my S4 is exactly what I want.

Vilhuer

I'm changing back to 2.54:1 this winter. 2.20:1 diff and modified 5L engine were not best possible match. Modifies S3 cams made 4th gear too slow for my liking. Those will change also to stock lobe S3 set.

Schocki

Hope this is OK. Uploaded some pictures but did not upload them into the threat directly...

pcar928fan

WOW! That is going to be awesome! Great pics and great work!

Schocki

Hi James,

I drove a whole season already with the S4 R&P and I have to say it was a good choice. The longer gearing is not really noticeable under daily driving situations. It actually saves gas and my GTS is even quieter (Hi Nicole).
If you take the shark on the Autobahn everything is normal in daily traffic. If you activate "warp drive" and push it beyond 140 MPH, than you can feel it. It takes longer now from 140 to 160 MPH and to reach top speed is significant longer. But the traffic situation rarely allows runs beyond 150 MPH.

Herman K

Schocki...

Did you see this one, don't know if you got any use for it.

http://cgi.ebay.de/Porsche-928-Diffe...79105704101490

Best Herman

Schocki

Hi Herman,

my GTS is just fine right now. If you want to swap yours I could get it for you...

Vilhuer

Too bad its pick up only. Othervise it would be on its way north already.

Ispeed

I think the 2.54 is perfect for the 4 speed a/t. The only thing better would be a 5 speed a/t.

dprantl

Is this only for an auto? Also, it says it's from an '88, but it comes with PSD?

Dan
'91 928GT S/C 475hp/460lb.ft

Vilhuer

Cover is for automatic but diff itself can be used in manual gearbox.

Based on that it has magnetic pick up in the diff its from '90 MY originally. Can have been in '88 MY later on or he's looking MY from casting markings which is not correct info. It would be good idea to get pinion gear from gearbox he's selling. Othervise ring gear is useless.