Quote:
Originally Posted by AC Ventura
Who is happy with their TKO600 with 0.64 O/D?
I know this has been done to death, but now it seems it my turn.
It seems the first 4 ratios of the TKO are quite similar to the original Toploader, so I guess the question is when you shift at 4000, with in my case with a 3.54 rear end will be 90mph, surely the 0.82 with its progressive 5th gear is a bit of a luxury. Seems to me, better to have the 0.64 option and get some quieter and more economical cruising. I'm guessing this will be a bigger real life benefit than accelerating hard from 90.
Trouble I see a lot of posts from guys, who want to trade there 0.64s for a 0.82s. I'm wondering if they have a longer rear end such as a 3.31 or 3.06?
Motor is a 427 FE approx 480/500 etc. Comments and real life experiences would be very welcome.
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I have the same set up as you and I have been going back and forth about going with the .82 or .64 OD
I have been reading a ton of posts from here over the last year
I have a 427 aluminum FE (505 Hp) and the 4 speed top loader with a 3.54 rear end
At 70-80 mph the engine rpm is way to high
With the 4 speed top loader:
At 60 mph -3000 rpm
At 72 mph -3500 rpm
At 85 mph -4000 rpm
I took a video of my speedometer and the tach while I was driving
The rpm might be off by 100-200 rpm either way
The video is a little hard to see really clear, the car was shaking and vibrating a lot Lol
I brought my car to the shop in Dallas 2 weeks ago to have the TKO 600 with the .64 OD installed
It should be ready in 1 week
Hopefully it was the right decision