Gear Vendors OD unit

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Offline soc123_au

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Gear Vendors OD unit
« on: January 14, 2011, 12:36:37 pm »
I seem to recall Derwin66 fitted one of these. Just after some feedback on how it goes & if its a good investment. From Derwin or anyone else that has tried them.
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Offline Bumblebee

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« Reply #1 on: January 14, 2011, 01:04:04 pm »
Here's how to install them.  I think a subsequent readers feedback did say there were some minor mods needed on a 64-66.

http://www.mustangmonthly.com/techarticles/mump_1004_gear_vendor_overdrive_installation/index.html

Cheers Bee
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Cheers Bee

Offline soc123_au

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Gear Vendors OD unit
« Reply #2 on: January 14, 2011, 01:53:00 pm »
Thanks Bee, I am more looking for what people think of them performence wise. Basicly if you had your time over would you do it again. Do the gains outweigh the cost etc.
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Offline derwin66

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« Reply #3 on: January 14, 2011, 07:48:04 pm »
I love it.  Landed cost about $3G and about $100 to modify the exhaust a little.  I have 3.55 rear diff with 14 inch wheels and it dropped my revs by about 600-800 on the highway which was what I was after.  You can switch it off if you want and put it on manual.  The only thing is for a 65-66 you need to buy a elbow with the unit to fit the speedo cable or you have to bend it and it will break pretty quick.  The gear changes work off  a solenoid on the cable so that would be real bad.  

I must admit I fit it in December and with the weather up here I have only driven it a couple of times, but so far so good.  I did my sums with an AOD and by the time I got the box here, tricked it up, bought all the parts to fit it, I found it was going to be more expensive and with the risk of it being a clusterf%^&.  I had a good C4 so this was a no brainer for me.  
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65 T code coupe.
Blown 302. Heidts suspension, tricked C4
Gear vendors overdrive, RRS rack and pinion
Street or track roller perches adjustable struts.
60 F100.
Warm 289, AOD

Offline cap70

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Gear Vendors OD unit
« Reply #4 on: January 15, 2011, 01:00:48 am »
Wouldn't it have been cheaper and less hassle to change the diff gears ? I changed from 3.55 to 2.89 in the xw i had and that was a great cruiser without loosing to much on take off
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Offline jas24zzk

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« Reply #5 on: January 15, 2011, 01:17:49 am »
sorry cap70.   you dropped from 3.55 to 2.89 with no launch loss.  (wheres the bullsh*t icon)

3.55 - 3.80 and 14 inch is the optimum set up for GV, unless you get them to build you an underdrive unit.

I am watching threads on the subject on multiple forums, and so far i have seen nothing bad.  Worst would be some fitting issues, but those were from muppets with no clue so they don't count.

From what i have seen/read, if the need arised i would not hesitate to fit a GV unit.
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Offline Frank70

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« Reply #6 on: January 15, 2011, 09:28:05 am »
I have 4.11s and considering a GV or 5-speed conversion. Still deciding ...

Have sent 3 emails to Keisler engineering in the US about their Tremec conversion , but had no replies ... looks like they are off my list...

Anyone deal with Keisler ?

Cheers,
Frank.
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Offline derwin66

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Gear Vendors OD unit
« Reply #7 on: January 15, 2011, 10:40:05 am »
I changed to 3.55 for more launch, I had 2.79 and it was good for the highway and that was it.  My car is a resto mod and money isn't the issue I want my car to go fast in a straight line and still be streetable so the GV was the option that best suited my needs.  You do need to massage the tunnel a little but not very much and it is not noticable.  Oh, and I forgot to mention you need to shorten your tail shaft as well.
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65 T code coupe.
Blown 302. Heidts suspension, tricked C4
Gear vendors overdrive, RRS rack and pinion
Street or track roller perches adjustable struts.
60 F100.
Warm 289, AOD

Offline HEVEN67

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Gear Vendors OD unit
« Reply #8 on: January 15, 2011, 10:18:14 pm »
Quote from: Frank70 link=topic=13378.msg138101#msg138101
I have 4.11s and considering a GV or 5-speed conversion. Still deciding ...

Have sent 3 emails to Keisler engineering in the US about their Tremec conversion , but had no replies ... looks like they are off my list...

Anyone deal with Keisler ?

Cheers,
Frank.



Hi Frank...Muzzy67 if you remember him! He has a keisler box. luvhev


Also I am fitting one to my effie to the C6.luvluvhevhev:bolt:
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Offline Frank70

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« Reply #9 on: January 16, 2011, 11:55:45 am »
Thanks Hev !

Cheers,
Frank.
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Offline soc123_au

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Gear Vendors OD unit
« Reply #10 on: January 17, 2011, 04:16:02 pm »
Thanks Derwin, I bought the AOD & the conversion to suit the 390. I am having sleepless nights thinking I have done the wrong thing. My original plan was GV & a C6, then the AOD came up & I jumped on it. Sometimes the first thought is the best one. May have to revisit when the funds recover from all the other crap i have bought:hammer:
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Offline HEVEN67

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« Reply #11 on: January 17, 2011, 07:59:28 pm »
Steve maybe a thought is to fit a 4R100 then it can be intergrated into your compueter program, they are 4 speed OD electronic controled box, Joe at A class automatics will rebuild it for you,Mega strong box, I know American drive lines in Melb has them, Maybe even Ebay!
Luvhev
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Real muscle cars have 3 pedals. Where theres smoke theres Tyres

Offline soc123_au

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Gear Vendors OD unit
« Reply #12 on: January 18, 2011, 08:37:54 am »
Been thinking about that too Hev, probably need to get my finger out & have a chat to Joe at A class & see what he reckons.
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Offline HEVEN67

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« Reply #13 on: January 18, 2011, 10:05:13 pm »
It will work and they are desighed for lots of punishment.
luvhev
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A successful man is one who makes more money than his wife can spend. A successful woman is one who can find such a man.




Real muscle cars have 3 pedals. Where theres smoke theres Tyres

Offline cap70

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Gear Vendors OD unit
« Reply #14 on: January 20, 2011, 01:12:50 am »
Quote from: jas24zzk link=topic=13378.msg138098#msg138098
sorry cap70.   you dropped from 3.55 to 2.89 with no launch loss.  (wheres the bullsh*t icon)

3.55 - 3.80 and 14 inch is the optimum set up for GV, unless you get them to build you an underdrive unit.

I am watching threads on the subject on multiple forums, and so far i have seen nothing bad.  Worst would be some fitting issues, but those were from muppets with no clue so they don't count.

From what i have seen/read, if the need arised i would not hesitate to fit a GV unit.

havent been on for a while, i didnt say no loss just not much the xw had a c4 and with the 3.55 it was changing to 2nd almost straight away, with the 2.89 it held 1st longer and seemed a much smother change. was also much better on the freeway.
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Offline HEVEN67

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Gear Vendors OD unit
« Reply #15 on: January 20, 2011, 07:30:45 pm »
Hey s Steve I seen Joe today and he reckons your gunna have dramas with the AOD, But since your running a computer an 4 speed electronic auto will handle more power than a Hyrdo AOD every day. Luvhev
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A successful man is one who makes more money than his wife can spend. A successful woman is one who can find such a man.




Real muscle cars have 3 pedals. Where theres smoke theres Tyres
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