575M - F1 to Gated 6 Manual Conversion

From what I can see the Rosso 70th is not metallic

 

That makes sense. I too have never had a vibration issue with any of my 3 550. In fact, all of these EOM Factory linkages include rubber bushings that absorb the unwanted vibrations while levaing the "good vibrations." Interesting information about the engagement of sixth gear on the 599 and the resolution of the issue.

 

Ha! Amazing! How come the change? Or was that always the plan?


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I think it is better to have it with the shift rods. It as they came from the factory.

 

Hello all,
Anyone in the conversion crowd interested in a reconditioned 550 gearbox? Please let me know.
Bart

 

Bart- The 575M gearbox was upgraded from the 550 with triple syncros in the lower gears. Not a one for one exchange, although one converted 575M did use a 550 gearbox, so it definitely would work. Gearbox cases are virtually identical.

 

Bart as a follow up to your and Terry’s post…did you mean just the gearbox or did you mean it’s from a car getting parted out and all the parts needed are available (turret/linkages/etc). Thx

 

I am aware that a 575 manual box is an improved version of the 550; 10 years of evolution. Manual 575 gearboxes are in limited supply, though, so perhaps there is interest in a 550 box at a reasonable price.

@eric, sent you a PM.

 

575 manual and F1 gearboxes are identical. There is no such thing as a manual or F1 gearbox. There is one gearbox with different shifters, linkages, plugs, etc attached depending on whether F1 or 3 pedal.

 

YESSSSSSS!!!!
Keep the updates coming! ;-)

 

I assume you're discussing the green 575 converted in Forza magazine? As I understand it was an early conversion using a lot of OEM parts.

 

Did u get into another 550/575? If so that’s awesome, can’t wait to see what you do with it!

 

Whoops just realized I responded to a 2021 post. Got too excited. Well the sentiment still stands, hope u get into another maranello!

 

Kevin- Beats me. Too much water under that bridge. I just know one was done and to simplify the conversion, the 550 gearbox and all its ancillaries was exchanged. Having a broken 550 provides a lot of hard to find parts.

 

Indeed it does! I wonder if the 550 shifter and mechanisms and rods were different with the factory 575's?

 

Pretty much identical, as you would expect.

 

Does anyone have the numbers of teeth of the gears inside the 550 and/or 575 box?
I was making an overview of the different gear ratios between the 456/550/575 series and forgot to count when I recently had these boxes apart. I thought I could take them from the Eurospares site where the teeth numbers are mentioned for the 456, which I knew, but not for the other types.

 

It is in the owners' manuals. 1st 13/41, 2nd 17/37, 3rd 23/36. 4th 27/32, 5th 31/29, 6th 33/25 R 13/31

 

Is that for the 575?

 

The 550 and 575M have identical gear ratios.

 

Thanks. That was not so obvious to me as all part numbers are different, as are the prices per part.

 

Affirmative, many of the 575M gearbox parts are shared with the Enzo and 612 and have been beefed up for the F1 system.