[L69-Z28]

I have a new G-Force G5R transmission that I started using this summer. I have found the tranny likes lots of RPMs when using the clutchless upshifting. I'm able to do that pretty good but I have issues when trying to do a clutchless downshift. The clutchless downshifting was one of the reasons why I went with a dogring tranny because I'm not very good at heel-toe (rolling the foot). I now use the clutch everytime when down shifting (still trying to figure out the rpm match). I do shift the gears very quickly and the engine is only a 10.6:1 compression ratio.

I've talked with the manufacture regarding the downshifting. Anyone who uses a dogring tranny shed some light on how they do a clutchless downshift ??
Thanks,
Brian

[ReEntryRacer]

Yes that looks like a GForce or Tex 4 speed, which are based on the old Borg-Warner T10.
I have the newer version in my car, which is now made by GForce, but originally known as the Tex101A which adds an internal pump to flow into an external cooler.
The case is magnesium, but its still heavy compared to a t5, for instance. It has standard mounting holes that match any chevy 4-speed bellhousing.
It is one great trans!