Differential Changover

[Tom Berg]

Does anyone know how I can get my differential changed to a higher ratio?  3000rpm at just 60mph is really low.  I'm in the Seattle area.

[Rolf-Dieter ✝︎]

Hi Tom,

Did you try/use our Search (top line after Tech Manual).

You will find a lot of info there.

You can refine the search, give it a go

Check here ---> http://www.sl113.org/forums/index.php?topic=773.msg3615#msg3615

Dieter

[jameshoward]

As Rolf says, there's a ton of info about this on the site. It's been discussed many times. It depends on whether you're prepared to do it yourself, which is a quite a bit of work but not by any means impossible, (http://www.sl113.org/forums/index.php?topic=18228.50) or whether you want someone else to do it for you.

In either case, you'll need to confirm what diff you have now, and then figure out what you want to change it to. Again, all the info is here on the site. (Your diff ratio is stamped on a machined surface at the base of the diff on the rear casing, and is on the data card if you have a copy).

Note that there are pros and cons of changing the diff. Again, I'd suggest a few hours trawling through the myriad posts on the site. 

[Cees Klumper]

Changing to a higher rather than lower ratio should be cheaper than vice versa, since that's what most people want, so there should be axles available. I had this done many moons ago (around 2002 as I recall) for about €750 all-in, so including the cost of the other differential (they did keep mine).