 |
|
| Pontiac - Street No question too basic here! |
| View Poll Results: Wide or close ratio TKX and gear options *street car* | |||
| Wide ratio w/ 3.08 gear |
   
|
6 | 20.69% |
| Wide ratio w/ 3.36 gear |
  
|
10 | 34.48% |
| Close ratio w/ 3.55 gear |
  
|
6 | 20.69% |
| Close ratio w/ 3.73 gear |
  
|
7 | 24.14% |
| Voters: 29. You may not vote on this poll | |||
|
|
Thread Tools | Display Modes |
|
#1
10-27-2024, 09:40 AM
|
||||
|
||||
Close vs wide ratio trans and rear gear
After developing a noise in my 70 GTO M20 transmission, I discovered a broken gear tooth on first gear. Time to upgrade to a TKX (been wanting to for a few years now)
Car currently equipped with a 10-bolt with 2.93 gear. Have a 12 bolt rear ready to build. I’m trying to decide whether to purchase the close ratio TKX (2.87 first, .68 fifth) or the wide ratio (3.27 first, .72 fifth). If I go with the close ratio, I’d likely build the 12 bolt with a 3.55 or 3.73 gear. If I go with the wide ratio, I’d likely go with a 3.08 gear for the 12 bolt. Car has a ”stock-spec” 400 (2802 cam, everything else 1970-correct). It’s a cruiser, not a race car. Might play around with some occasional autocross events, but it’s 98% street-driven cruise-in car. So, wide ratio with 3.08 or 3.36 rear gear, or close ratio with 3.55 or 3.73 rear gear?
__________________
Matt 70 GTO 400 4-speed "Turbos make no noise and leave the line like Baby Diarrhea!" - GTOGeorge |
| The Following User Says Thank You to PontiacMatt72 For This Useful Post: | ||
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Threaded Mode