TransGo Th400 1-2 kit vs TransGo 400-Pro kit?

[Ned Kelly]

I'm not a tranny techie guy and I'm getting another project TH400 prepped for firmer shifts and dual use full auto or manual up/down shifting at any rpm when needed, so wondering what the difference is......

What is the difference between Trans go 400 1-2 kit :
http://www.summitracing.com/parts/TRG-400-1-2/
I have had this kit in my K30 for years and it has worked great.

Automatic shift; Street or full-race; Holds 1st and
2nd to any rpm; Backshifts to 2nd and 1st at any​

rpm; Tow & Go and Competition combination


Supposedly new.....Versus the TransGo 400-Pro kit:
http://www.summitracing.com/parts/TRG-400-PRO/Application/?prefilter=0
Is it worth the $10 more? Are the case protecting snap ring and alum 2-3 Acumulator piston worth it?

Pro-Race—Heavy Duty—Super Show Off.
Awesome capacity with adjustable “Classy” shifts.
Holds any gear to any RPM and backshifts with the
lever to any gear at any speed. Has case protecting​

snap ring and Alum 2-3 Accumulator piston.


See page 10 for the TH400 kit description:
http://www.transgo.com/transgocatalog0206.pdf

 

[ChrisPerry]

The first kit will shift through the gears on its own. The second kit will remain in the gear you select, kinda like a stick with no clutch. It gets old pretty quick.

 

[Ned Kelly]

Thanks Mr. Perry,
The decision is easy then, I'll go with another 1-2 kit as I want to just put it in drive and sail away. I agree, the other way would get old in 5 minutes. My friend has a full manual in his muscle car and after the short demo ride he gave me I would not even consider that option.