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gearvendors overdrive usage

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Old Oct 5, 2002 | 07:24 PM
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Default gearvendors overdrive usage

I'm seriously considering installing a gearvendors overdrive setup on my 77 L-82. It has a TH350 in it. It will be after the engine gets warmed up a little bit (not tellin ya the particulars yet..not quite sure how wild i am gonna be going yet). Anyhow, have any of you guys installed one yet? from the looks of it, the install should be relatively painless... :flag
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Old Oct 5, 2002 | 11:31 PM
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Default Re: gearvendors overdrive usage (Aflac)

You might have some clearance issues, but I haven't seen one on a C3. There's usually an adapter that replaces the tailshaft and the overdrive attaches to that, and it will most likely call for some creative crossmember (and maybe tunnel) work. I hope you get one and can report on it. They are way :cool: giving you six speeds with the push of a button. They are very proud of them though $$$. Much cheaper to replace that TH350 with a built 700r4.
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Old Oct 6, 2002 | 10:40 AM
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Default Re: gearvendors overdrive usage (Aflac)

i agree about the idea of the 700r4 being easier and cheaper, but ya gotta admit that idea of a 6 speed automatic is pretty cool. i looked at the website and they do make one for a small area space. they say it is perfect for the 70-81 camaro. i am gonna get ahold of them and see if they know of anyone that put one in a vette. and i will definitely forward any and all info and possible pics of it when it's done :flag
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Old Oct 6, 2002 | 10:49 AM
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Default Re: gearvendors overdrive usage (Aflac)

If you happen to be watching TRUCKS! on TNN this morning, Stacy installed a GV Overdrive behind a new GM 572 ci crate motor. Pretty dang cool. :cool:
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Old Oct 6, 2002 | 11:03 AM
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Default Re: gearvendors overdrive usage (Eddie 96)

All great and wonderful, BUT the reduction ratio is ONLY 20% not worth messing with....cruise at 4 grand, with 'GV it's only 3200 not enough engine speed reduction....

if it was say a 30-35% reduction it would be a viable option....

GENE
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Old Oct 6, 2002 | 11:42 AM
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Default Re: gearvendors overdrive usage (mrvette)

ONLY 20% not worth messing with
===========================

So, what is the reduction with a 700R4? :hat
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Old Oct 6, 2002 | 12:53 PM
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Default Re: gearvendors overdrive usage (SanDiegoPaul)

30% in a 700r4. 33% in a 200-4r. Or in my case, 2300 rpm @ 80 mph! Sweeeet :yesnod:
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Old Oct 6, 2002 | 02:13 PM
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Default Re: gearvendors overdrive usage (Aflac)

I used to work across the street from Gear Vendors in El Cajon, CA. - they have some awesome equipment there and there is usually a rod or two out front.

While I think the idea has merit I tend to agree that the TH700R4 is a far better choice, especially at the price, you could almost install 2 700R4's for the price of a single GV unit. plus there is the added weight.

Would be cool to see one work though - I've never been in a car with one - always wondered what it would feel like.
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