Pagoda SL Group

W113 Pagoda SL Group => General Discussion => Topic started by: n/a on September 19, 2003, 10:15:55

Title: Changing Differential Gears For Better Mileage
Post by: n/a on September 19, 2003, 10:15:55

Has anyone changed the final drive cogs for better mileage? I have in mind a subtle change in an effort to make the car a bit longer legged.
Thinking of commuting in my 230SL Automatic in Southern California.

230SL

Title: Re: Changing Differential Gears For Better Mileage
Post by: Cees Klumper on September 19, 2003, 15:15:47

I replaced my 4.08 with a 3.69 rear axle (complete swap - the cost of the cogs and the time to change them out exceeds the cost of a good used complete rear axle) and it resulted in 'longer legs'. However I suspect the effect on the mileage would be quite small. And in your case, changing to a 3.69 would not be worth the trouble. There is the possibility of going lower still, but you would need a sedan rear-end and if you have an automatic, that would for sure make the car pretty sluggish on take-off. I would stick to what you have.

Cees Klumper in Amsterdam
'69 white 280 SL automatic

Title: Re: Changing Differential Gears For Better Mileage
Post by: n/a on September 20, 2003, 11:35:42

Thanks Cees...After what I've learned here I think I'll keep it as is.


230SL