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Author Topic: '79 c30 trans question  (Read 2174 times)

Offline yzrider

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'79 c30 trans question
« on: February 22, 2010, 09:16:08 AM »
Ive got a 79 c30 dually with a manual trans.  Its a 3 speed with a granny gear and was wondering if theres an od unit I can bolt on or an aux unit or something like that to give this rig some longer legs. 
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Offline frito-bandito

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Re: '79 c30 trans question
« Reply #1 on: February 22, 2010, 10:33:29 AM »
You could always do a NV4500 swap, or go with a built 700R4 automatic. If you search on here, you will find info on how to do this swap, I'm looking to do a similar swap myself, good luck.
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1981 Chevy dually 350 4spd. (One piece at a time)
1994 GMC C1500 4.3L 4L60E. (340K Daily Driver/Resto-Mod)
1998 GMC C1500 5.0L 4L60E (179K Daily Driver)

Offline yzrider

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Re: '79 c30 trans question
« Reply #2 on: February 22, 2010, 10:50:52 AM »
I want to keep it a stick.  Is the nv a manual?

So a trans swap is the only option?  ALso is the trans I have considered a 3 speed or a 4 speed? 
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Offline frito-bandito

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Re: '79 c30 trans question
« Reply #3 on: February 22, 2010, 09:00:31 PM »
Yes the NV is a 5 speed syncronized overdrive manual. I've heard about add on overdrive, but I've never seen it. If anyone knows about this type of OD i'd like to know more about it.
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1981 Chevy dually 350 4spd. (One piece at a time)
1994 GMC C1500 4.3L 4L60E. (340K Daily Driver/Resto-Mod)
1998 GMC C1500 5.0L 4L60E (179K Daily Driver)

Offline Captkaos

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Re: '79 c30 trans question
« Reply #4 on: February 22, 2010, 09:39:47 PM »
The add on overdrive is EXPENSIVE, like more than the cost to convert to a NV4500..

http://www.gearvendors.com/cg2wdt.html
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