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AveryMcLawhorn · 05-14-2025, 02:22 PM

Asking an age old question but looking for some real experience and or data to back up the questions.

In terms of three speed transmissions out there for SS with trans brake what is the actual ET differences between say the following:

Protrans
Rossler TH350 Lighted
Coan XLT-350
Metric 200 (McClay or Equivalent Builder)
A-1 TH350 Lighted
ATI Transmissions
etc.

Before anyone says, I know there are a lot of variables, gear ratio, convertor, etc. but looking for some actual experience out there. I have heard pro-trans is one of if not the fastest, but by how much or was cause the gear ratio was changed to be more ideal for the combination?

05-14-2025, 02:22 PM	#1
AveryMcLawhorn Junior Member Join Date: Nov 2020 Location: Snow Hill, NC Posts: 47 Likes: 61 Liked 75 Times in 17 Posts	3 Speed Transmission Question Asking an age old question but looking for some real experience and or data to back up the questions. In terms of three speed transmissions out there for SS with trans brake what is the actual ET differences between say the following: Protrans Rossler TH350 Lighted Coan XLT-350 Metric 200 (McClay or Equivalent Builder) A-1 TH350 Lighted ATI Transmissions etc. Before anyone says, I know there are a lot of variables, gear ratio, convertor, etc. but looking for some actual experience out there. I have heard pro-trans is one of if not the fastest, but by how much or was cause the gear ratio was changed to be more ideal for the combination? __________________ Avery G. McLawhorn 2166 Super Stock