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Discussion Starter · #1 ·
Using a chart from and older post I have identified my tranny in my 99 Regal LS. On the transaxle tag the important numbers are:
6
1
9
A
P
B

I believe I have a 4t65E. Can someone confirm this?

Two other questions. The Identifier chart says I have a 3.05 gear ratio but another source says the stock ratio is 2.93. Is the difference due to the TC?

Second, even though this is in a Regal LS, I am assuming if I wished to upgrade to a -HD setup all the -HD upgrades will fit and work 100%.
 

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Discussion Starter · #2 ·
Hey I figured this one out myself. My final drive is 3.05 while my first gear ratio is 2.93:1. I must have read it wrong the first time. I need to convert it to a -HD first.
 
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