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Lizard · 06.16.2014, 05:55 AM

I would stay away from HPI diffs in general, too many drawbacks IMHO.

The ones you linked are the old ones with weak ringgear and bevelgear.
Another bad thing about HPI diffs (all of them, also the newer "bulletproof" ones) is that they use weak 10x16x5 bearings on one side.
Most 1/8 scale diffs have stronger 8x16x5 bearings on both sides.

For the bevel gear you usually need two 8x16x5 bearings as well.

The older HPI Savage output cups are made for dogbones with around 9mm ballends, the newer output cups (Savage Flux, XL) for bones with around 11mm ballends. However, most (if not all) other 8th scale dogbones or CVDs have 8mm ballends.

If the Savage diffs are known to fit inside the FLM bulkheads, I would go for CEN GST 7.7 diffs, since they fit the Savage, they should also fit the FLM bulkheads then I guess. They are completely indestructible. Drawback is, that they are quite heavy.

	(#2)
Lizard RC-Monster Carbon Fiber Offline Posts: 197 Join Date: Jul 2013 Location: Germany	06.16.2014, 05:55 AM I would stay away from HPI diffs in general, too many drawbacks IMHO. The ones you linked are the old ones with weak ringgear and bevelgear. Another bad thing about HPI diffs (all of them, also the newer "bulletproof" ones) is that they use weak 10x16x5 bearings on one side. Most 1/8 scale diffs have stronger 8x16x5 bearings on both sides. For the bevel gear you usually need two 8x16x5 bearings as well. The older HPI Savage output cups are made for dogbones with around 9mm ballends, the newer output cups (Savage Flux, XL) for bones with around 11mm ballends. However, most (if not all) other 8th scale dogbones or CVDs have 8mm ballends. If the Savage diffs are known to fit inside the FLM bulkheads, I would go for CEN GST 7.7 diffs, since they fit the Savage, they should also fit the FLM bulkheads then I guess. They are completely indestructible. Drawback is, that they are quite heavy.