BTR Hydratrack Identification

[ukkid35]

I've recently bought a used diff with the part number R0076

This suggests that it is a cone type diff as fitted to most Chims

What is the part number on a Hydratrak diff, is it R0077?

There's no tag on my old diff to check unfortunately



Here's tag fitted on another BTR, but Photobuck have made it very difficult to read

chris watton said:

This is the tag on my old (non Hydratrack) diff:

Also there's a new tag 'CR - PM JS' is that from a rebuilder?