| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#2
03-16-2017, 01:55 AM
|
||||
|
||||
The lower first gear on the 200-4R already has a nice overall ratio with the 3.55.
Another thing to consider is that that while the engine is operating at a lower RPM, the 3.90 or 4.11 pinion gears will be hauling at higher cruising speeds. Going to be a lot of heat generated in the pumpkin on extended runs, and even if the rearend is quiet at first, I wonder if there might be accelerated wear? I would be inclined to stop at the 3.73 ratio. I've had pretty good results with Yukon, mixed results with U.S. Gear, and bad results with the no-name ebay units that we tried.
__________________
Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon. |
|
|
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