Easy OD Trans?

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Jul 28, 2008 | 11:06 AM

HO-alts-Rick

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Racer

Joined: Mar 2006

Posts: 343

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From: Davenport Ia

Easy OD Trans?

What is the easiest OD swap into an 81? Does anyone have a complete kit available? What all is needed?

Jul 28, 2008 | 11:55 AM

Durango_Boy

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Joined: Aug 2006

Posts: 24,125

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From: Columbia Missouri

Quote:

Originally Posted by HO-alts-Rick

What is the easiest OD swap into an 81? Does anyone have a complete kit available? What all is needed?

Bowtieoverdrives.com will have a kit for your car. I suggest the TH2004R.

Jul 28, 2008 | 02:05 PM

7T1vette

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Joined: Jan 2006

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From: Crossville TN

Hmmm. I thought the '81 came with an overdrive tranny from the factory.??

Jul 28, 2008 | 02:08 PM

Durango_Boy

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Joined: Aug 2006

Posts: 24,125

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From: Columbia Missouri

Quote:

Originally Posted by 7T1vette

Hmmm. I thought the '81 came with an overdrive tranny from the factory.??

..and here I thought it was '82. I don't recall anymore.

Jul 28, 2008 | 03:26 PM

kevinator80

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Joined: Oct 2004

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From: Lafayette Louisiana

My gray matter is telling me the 82 was the first year of od (700r4) and the 81 came with a lock up convertor but still a turbo350 tranny.

Jul 28, 2008 | 03:33 PM

mrvette

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Joined: Jul 1999

Posts: 65,492

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From: Orange Park Florida

Quote:

Originally Posted by 7T1vette

Hmmm. I thought the '81 came with an overdrive tranny from the factory.??

NO it has a lockup 350 tranny, known as the 350C unit....

the same plug setup works for the 200 4r I understand, IF so you have a drop in swap.....

damn nearly....

Jul 28, 2008 | 03:59 PM

HO-alts-Rick

Thread Starter

Racer

Joined: Mar 2006

Posts: 343

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From: Davenport Ia

Quote:

Originally Posted by kevinator80

the 81 came with a lock up convertor but still a turbo350 tranny.

This is correct for my 81 anyway.............

Jul 29, 2008 | 01:51 AM

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

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From: Crossville TN

I stand corrected. Lockup clutch w/o overdrive in 81.

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Jul 29, 2008 | 09:16 AM

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The 200r4 is indeed the easier swap. If you are running much more than stock power, you will have to beef up the tranny during the rebuild. If you buy one from one of the vendors it will already have the stronger hard parts in it. Your existing trans yolk and trans mount will work. You will need to get the shifter kit if you want to be able to pull it into low.