Originally Posted by
matt31313
The LD3M has the laydown transmission whereas the LD3D has a standup transmission the instructions show both so you can work out which you have. The LD3M is the car for dry astro, which tracks do you race at in the UK?
The ball diff should generate more grip and handle the bumps / sand better if it's built correctly and well maintained. The gear diff will give you more drive and be more consistent run to run with less maintenance but is a bit more of a handful and can catch you out over the bumps.
There's a Setup for Herts from Ben Smith on the Schumacher site, that's a really good starting point. If you're using splinters then glue your sidewalls up to the start of the webbing and don't be afraid to turn your dual rate down to take some steering out. Enjoy!
Thanks, was looking at Trish's Stotfold, will take a look at the Herts setup, although I understand at a National a lot of sand comes up there. I run Coastal club in Ipswich and race in the EOE Regional, I think we have less sand so a bit grippier but not really high grip, more medium