just wondering if the B6D.1 ball diff fits the B6D.

I have the B6.1 and the outdrives are amazing. I already went through 2 driveshafts (racing in 13.5T carpet) and the outdrives still doesn't have wear on it.

I know from experience that the B6.1 gear diff fits the B6 minus the metal spacers.

yes its the same ball diff

Anyone here running at T.A.P raceway in williamstown nj? Just moved to the area and getting my b6d ready. Just looking for some info about the track. Setups/tires etc. Cant find much about them from their site. Any help would be gratefully appreciated thanks!!

Has anyone installed a B6.1 gear box to the B6 chassis? Since the ball diff's are the same, is the bolt pattern for the gearbox itself the same. I want to upgrade the gearbox so I don't have to pull the whole back end of the car off to do diff maint. I apalogize if this question has been answered. I tried to search it and found someone with a list of everything to convert but I want to use my current B6 chassis if I can.

hell yeah... dirt loose track.

Anyone know the weight difference between ball diff and gear diff? Looking at playing with gear diff on high bite clay and wondering if there is a big weight penalty with the gear diff with gears and fluid.

Is there a substantial difference between the B6.1D and the B5M on loose dirt? Enough that it would benefit a beginner to spend the extra money on the 6.1D?

For someone just starting out it probably doesn't matter what car you have since just keeping it on all four wheels will be the biggest challenge. Every time you crash you are going to loose at least 5-10 seconds. So if you crash a couple times a lap it doesn't really matter how fast you are going the rest of the time. Once you can put together full races with only a couple crashes the car will come into play.

The one thing I will say though is the new buggies are nicer to work on and would probably be easier to find parts for at the track if you need them. I can't imagine there being a ton of B5m's at the track anymore but there will be lots of B6d/B6.1d

So looking at a used B6D could be worth it in order to find some cost savings? Or is it just worth the extra money to upgrade to a B6.1D?

If your patient you can probably find a good used B6d. Since you already have the electrics, I would buy only a roller. Keep it under $150 because if you want to spend $300 then just buy the new buggy.

What spare parts are typically good to keep on hand when run the 6D at the track? Are there any weak spots that you were finding were breaking more frequently?