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Doug Nash 5spd ?

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Old Apr 6, 2014 | 06:14 PM
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Default Doug Nash 5spd ?

I am building a L88 C3. It's an original 427 car with a Doug Nash 5spd. It's not too user friendly on the street. Are these primarily a 1/4 mile trans.? Which trans. do I use for canyon driving, street, road racing?


Robert

Last edited by R. Seghi; Apr 7, 2014 at 07:51 PM.
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Old Apr 6, 2014 | 06:16 PM
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That transmission is designed to work with a 3.08 rear gear ratio. what gears are you running in the rear?

I have one in my car and it is very streetable
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Old Apr 6, 2014 | 06:29 PM
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Must be something wrong...that's a great street trans. Ran one for years with my 427.

JIM
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Old Apr 6, 2014 | 07:14 PM
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Great street trans.

I have one in my 427 Small block '61 car with 3.08 gears (12 bolt). It is noisy like an M22, though. Line launches like a close ratio Muncie with 4.56 gears, and still only 3000 RPM at 80 MPH

Tip:

use GL-4 gear lube; if you use hypoid GL-5 lube, it slows the shifting down a bit as it takes the synchros longer to spool up as the GL-5 is more slippery.

Doug
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Old Apr 6, 2014 | 07:21 PM
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I use the Richmond Transmission fluid in mine. It looks like blue automatic transmission fluid.
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Old Apr 7, 2014 | 12:05 PM
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I have about a 3:30 posi. Down shifting from third to second is very difficult. And finding first is not easy.
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Old Apr 7, 2014 | 12:06 PM
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I assume that I have to remove the engine and trans. together? Can I just remove the trans.?
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Old Apr 7, 2014 | 12:17 PM
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Originally Posted by R. Seghi
I have about a 3:30 posi. Down shifting from third to second is very difficult. And finding first is not easy.
You might just need to adjust the linkage. Do you have a Hurst or Long Shifter?
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Old Apr 7, 2014 | 01:39 PM
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Throw away the Hurst shifter and buy a Long Enterprises 5speed shifter. The Hurst shifters for the 5 speed have a bad reputation, Richmond finally had to include Long shifters on all their 5/6 speed transmissions to stop getting warranty claims from Hurst users.
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Old Apr 7, 2014 | 01:52 PM
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I have the older style Long shifter on mine and it rattles like crazy when I accelerate. It drives me nuts
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Old Apr 7, 2014 | 02:02 PM
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Originally Posted by qwank
I have the older style Long shifter on mine and it rattles like crazy when I accelerate. It drives me nuts
Have you contacted Long about your problem? They are great people to work with and back their products
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Old Apr 7, 2014 | 02:58 PM
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If you have a removable crossmember, you can leave the engine in place.
Guessing not possible with solid crossmember since you can barely get a Muncie out.
Originally Posted by R. Seghi
I assume that I have to remove the engine and trans. together? Can I just remove the trans.?
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Old Apr 7, 2014 | 03:18 PM
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Yeah I'll take that Hurst shifter off but I still gotta remove the engine and trans. to get to it.

Last edited by R. Seghi; Apr 7, 2014 at 03:56 PM.
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Old Apr 7, 2014 | 03:57 PM
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Originally Posted by Solid LT1
Have you contacted Long about your problem? They are great people to work with and back their products
No, but I tried everything to get it to stop. the new style shifter has heim joints on the ends and look to be a much better design
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Old Apr 7, 2014 | 05:25 PM
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Originally Posted by R. Seghi
I assume that I have to remove the engine and trans. together? Can I just remove the trans.?
I had a Richmond 5 speed that I recently sold to another forum member. I just delivered it Saturday to another forum member (5speeds) for an overhaul. The guy I sold it to mentioned that you could separate the main case of the trans from the tailshaft housing and either install or remove the tranny that way. You might contact Richmond about it.
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Old Apr 7, 2014 | 07:50 PM
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Originally Posted by Super6
I had a Richmond 5 speed that I recently sold to another forum member. I just delivered it Saturday to another forum member (5speeds) for an overhaul. The guy I sold it to mentioned that you could separate the main case of the trans from the tailshaft housing and either install or remove the tranny that way. You might contact Richmond about it.
This a Doug Nash 5spd. And I don't want to separate the trans. to get it out.
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Old Apr 7, 2014 | 08:11 PM
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The Nash and the Richmond 5 are the same transmission. Apparently the tailhousings are dry so Super6's suggestion is a good one.

Bill
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Old Apr 7, 2014 | 08:51 PM
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Originally Posted by Super6
I had a Richmond 5 speed that I recently sold to another forum member. I just delivered it Saturday to another forum member (5speeds) for an overhaul. The guy I sold it to mentioned that you could separate the main case of the trans from the tailshaft housing and either install or remove the tranny that way. You might contact Richmond about it.
I tried that years ago when I first got my Nash 5 speed. I still couldn't get the transmission in. I finally just loosened all the body mounts and bumpers and lifted the body up a couple inches to get enough room in the tunnel area.
Every other time I needed to pull the trans or do clutch work I just pulled the engine out with the trans bolted on.
YMMV. Possibly there's just enough build tolerance/slop in our old cars where some tunnel areas are just a little roomier (or less in my car's case).
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Old Apr 7, 2014 | 09:07 PM
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Why not just mod the center of the cross member
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Old Apr 8, 2014 | 01:44 AM
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Originally Posted by Bromleys Corvettes
Why not just mod the center of the cross member
That's an idea. Has anyone else done this with any success?
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