Sponsored

Is 2nd Gear Grind "Still a thing"?

jcb

Senior Member
First Name
Jeff
Joined
Jun 15, 2025
Threads
12
Messages
112
Reaction score
138
Location
USA
Vehicle(s)
FL5 Type R CW
I've gotten to 6500 miles and the 1 to 2 shift is not as nice as the others...not a grind, but not buttery nice....so I plan to change the fluid.

For those with issue, the AC Delco seems like the best opion based on skimming a lot of posts (so not scientific at all. :) )
 

Jon_To

Member
First Name
Jon
Joined
Jun 17, 2026
Threads
1
Messages
17
Reaction score
3
Location
Torrance
Vehicle(s)
2026 CTR
I would agree, its not a grind. maybe just slushy. I heard the RMM would help fix this. Correct me if i'm wrong.
 

zumbooruk

Senior Member
Joined
Oct 19, 2024
Threads
12
Messages
706
Reaction score
671
Location
Ventura CA
Vehicle(s)
2025 FL5, 2014 Chevy Suburban (wife), previous 2007 FA5
I replaced the transmission fluid with ACDelco Syncromesh at 8k

I have the Hybrid Racing short throw shifter and PRL RMM.

I still manage to grind 1st to 2nd when accelerating hard and shifting fast.

Sometimes it wont even go into 2nd and I have to slow down and try again.

But as someone mentioned above, probably a driver error...


BTW, I had the same experience with my 07 FA5 Si
Sponsored

 
 







Top