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Author Topic: DOUG NASH 4+1 TRANSMISSION??????????  (Read 1670 times)
JupiterBandit
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« on: September 26, 2012, 08:21:50 PM »

Anyone ever here of this as an option in a 1977 Y82?


DOUG NASH 4+1 TRANSMISSION
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ryeguy2006a
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« Reply #1 on: September 27, 2012, 07:03:05 AM »

I am pretty sure that wasn't a factory option, but was something that Herb Adams offered aftermarket.
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« Reply #2 on: September 27, 2012, 07:40:22 AM »

not a factory option....but my 80 has one in it.....its a cool trans......super low first gear abnd heavy duty, supposed to be able to handle 600hp, not sure about that but i will tell you its the heaviest stick box I've ever picked up!!
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« Reply #3 on: September 27, 2012, 08:20:48 AM »

As said, it was an available over the counter tranny.  VSE and TA Specialties used them a lot.
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fiream773
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« Reply #4 on: September 27, 2012, 08:38:55 AM »

I replaced the broken T-10 in my '77 with one (now called a Richmond 5 speed).  I've been very happy with it. 

The Doug Nash 4+1 was specifically designed to replace automatics and make use of their numerically lower rear gear ratios to improve performance and fuel efficiency.  My '77 had a 3.23 which was almost too steep for the 3.27 1st gear of the 5-speed.  I swapped in a set of 2.73's & the car drives just like stock, but with the 2.73, I run 2,500 rpm at 70 instead of 3,100, which bumped hwy mileage from 15 to over 18.  Doesn't sound like much, but it's over a 20% improvement which makes a huge difference at $4.00/gallon.

To answer your question directly, no 5-speed transmission was ever available from the factory in any 2nd gen...
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