South Bend SDD-3250 Questions - Dodge Diesel - Diesel Truck Resource Forums

3rd Gen High Performance and Accessories (6.7L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 6.7L ONLY!

South Bend SDD-3250 Questions

Old 09-17-2017, 03:57 PM
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South Bend SDD-3250 Questions

77k on my truck and it's slipping under load, so it's time. I have it sitting in the garage, just haven't had the time to install it.

I've seen the formula for the new transmission fluid (1 gallon of DelVac 50 + 1 gallon of 5-30 synthetic syncromesh and use only 7 quarts) but what about the clutch master cylinder?

Do I use brake fluid, or is there another "secret recipe" out there for this?


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Old 09-18-2017, 05:54 PM
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I've tried the recipes and now am using Amsoil 75-90 MTG.
It's the slickest I've found.
The new HD master cylinder is sealed.
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