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- 2006
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300M Input Shaft
I am working up to a 4T65E bebuild for a higher output LS engine and this is a key component for the job. Should be much stronger than stock Good part!

4t65e input shaft
had the shaft break twice on this trans, so replaced with this one. So far, still working.

So far so good.
Machine and finish quality is as good as a OEM part. Significantly thicker than stock. I just finished building the transmission and just got it back in my car so I've been gentle with break in but have started getting a little heavier on the throttle last couple days. (2006 impala SS v8) 370 whp, twists stock input shafts like nothing on the 1-2 shift. So I hope this holds up.

Racing turbine shaft upgrade
Wow, this is a heavy duty shaft. It is machined just like the oem shaft and fits just fine. I can run much more horse power now . I like it and would buy again. Also was a low price .

4340 input shaft
Great price and quality looks excellent. Fitment is perfect also. I haven't put any serious power to it yet, but I'm confident I won't have any problems at all.