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Re: GEARVENDORS OR 518 [Re: Cab_Burge] #2867950
01/02/21 08:32 AM
01/02/21 08:32 AM
Joined: Jan 2003
Posts: 8,005
Tulsa OK
Bad340fish Offline
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Tulsa OK
Tom Bailey's Sick 2.0 Drag week car that ran 5.99 in 2019 runs a GV, at one point in time it was said to have two of them but I don't know if it still does. I am sure he is not shifting it under power though.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: GEARVENDORS OR 518 [Re: Bad340fish] #2868023
01/02/21 11:20 AM
01/02/21 11:20 AM
Joined: Nov 2003
Posts: 3,399
Dandridge TN
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Dabee Offline
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Originally Posted by Bad340fish
Tom Bailey's Sick 2.0 Drag week car that ran 5.99 in 2019 runs a GV, at one point in time it was said to have two of them but I don't know if it still does. I am sure he is not shifting it under power though.


A GV is a sun/planet gear setup with a cone shaped clutch and a piston pump for engagement. I see no reason why it can’t be engaged under power. I did it all the time. The gears are always engaged all you are doing is apply the clutch. It’s a 1 to 1 ratio until the clutch is engaged. Also if my memory is right I believe the gears are straight cut. It’s been a number of years since I had a GV apart .
Here is an article that explains hot it works

https://www.gearvendors.com/hodrod-may00.html

Last edited by Dabee; 01/02/21 11:22 AM.
Re: GEARVENDORS OR 518 [Re: polyspheric] #2868204
01/02/21 07:53 PM
01/02/21 07:53 PM
Joined: Nov 2003
Posts: 10,228
Colleyville
3hundred Offline
I Live Here
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Colleyville
Originally Posted by polyspheric
The actual GV ratio is rounded off to .78:1 but is actually =1/(1+(22/77)) or .77778:1.
GV also allows creating 2 intermediate gears by engaging it in 1st or 2nd.
For a 727 this makes:
1st 2.45:1
1st + GV 1.91:1
2nd 1.45:1
2nd + GV 1.13:1
3rd 1.00:1
OD .778:1


I had GearVendors in each of my Diesel duallys. I never found a use for splitting gears in either truck, one auto, one six speed, only used it as 2nd overdrive. I put an A500 in my '82 Ramcharger w/ 4.10 gears, liked it alot.


'68 Fury Convertible
'69 300 Convertible
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: GEARVENDORS OR 518 [Re: 3hundred] #2868218
01/02/21 08:12 PM
01/02/21 08:12 PM
Joined: Aug 2011
Posts: 2,843
Pattison Texas
CSK Offline
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Pattison Texas
I have a a518/46rh in my 68 Charger street strip car, I LOVE it !!!!!


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: GEARVENDORS OR 518 [Re: A/MP] #2868242
01/02/21 09:03 PM
01/02/21 09:03 PM
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Posts: 3,622
Millinocket, Maine
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JonC Offline
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Millinocket, Maine
With either option, what are the fitment issue's with TTI headers and small block 500 and 518 or Gear Vendors? In an E body?

Last edited by JonC; 01/02/21 09:06 PM.

11B40
Re: GEARVENDORS OR 518 [Re: JonC] #2868285
01/02/21 10:26 PM
01/02/21 10:26 PM
Joined: Nov 2006
Posts: 2,252
IL
furious70 Offline
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IL
with the a500 or 518 you can't run OEM console shifter linkage (the girth gets in the way of the down rod). I solved that by using a B&M cable kit driven by the OEM shifter in my fury.
We had a GV in a crew duallie, we never gear split either, the 440 had TQ enough to never need it. We didn't pull huge loads but never really needed to shift out of OD up hills either.

Both my fury and Charger have .68 OD's (fury auto 3.91's, charger stick 4.10's) and the big OD drop is really nice for going 80mph down the freeway. The fury is stock cammed and turbos, so the OD kicking in around town isn't too bad, but the Charger has a 484 purple in it and I don't go to OD until 3000+ rpm or it's just a loping mess (and poor mpg).

When my fury was naturally aspirated it had B body headers on the 383 and they fit around the a500 with no issues at all.

Last edited by furious70; 01/02/21 10:27 PM.

70 Sport Fury
68 Charger
69 Coronet
72 RR
Re: GEARVENDORS OR 518 [Re: furious70] #2868300
01/02/21 11:01 PM
01/02/21 11:01 PM
Joined: Dec 2003
Posts: 22,695
Bitopia
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jcc Offline
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So its my understanding gear splitting only works correctly/well if the OD is not too deep, hence the comments above about GV not offering a lot of OD.
Case of, "can't have your cake and eat it too".


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: GEARVENDORS OR 518 [Re: furious70] #2868306
01/02/21 11:16 PM
01/02/21 11:16 PM
Joined: Aug 2011
Posts: 2,843
Pattison Texas
CSK Offline
master
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Pattison Texas
Originally Posted by furious70
with the a500 or 518 you can't run OEM console shifter linkage (the girth gets in the way of the down rod). I solved that by using a B&M cable kit driven by the OEM shifter in my fury.
We had a GV in a crew duallie, we never gear split either, the 440 had TQ enough to never need it. We didn't pull huge loads but never really needed to shift out of OD up hills either.

Both my fury and Charger have .68 OD's (fury auto 3.91's, charger stick 4.10's) and the big OD drop is really nice for going 80mph down the freeway. The fury is stock cammed and turbos, so the OD kicking in around town isn't too bad, but the Charger has a 484 purple in it and I don't go to OD until 3000+ rpm or it's just a loping mess (and poor mpg).

When my fury was naturally aspirated it had B body headers on the 383 and they fit around the a500 with no issues at all.


I also made my stock shifter cable, I remade the dent nothes on the shifter so it work like a ratchet type shifter.

002.JPG009.JPG

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: GEARVENDORS OR 518 [Re: jcc] #2868310
01/02/21 11:27 PM
01/02/21 11:27 PM
Joined: Mar 2007
Posts: 3,275
West Coast, USA
jbc426 Offline
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I drove around my buddy Mike Musto's B-Body with a 727 & Gear Vendors for a weekend. It was just too litlle of a good thing with that .78 to 1 OD. I wouldn't bother for that little of an improvement.

Then again I run an Extreme Automatics Stage 2 2004R with a 3800 rpm lock-up converter from Precision of New Hampton behind my 408 Magnum. It's the best performing transmission I've ever driven and has a 2.76 to 1 first gear and a .67 OD. Locking up the converter makes it seem like a 5 speed by dropping about 350 rpm in 4th. I painted it black and put a Mopar sticker on it for the purists.

Although if you have over 1000hp & 850tq, you would have to upgrade to a Stage 3 version.

200R4 3 (Medium).jpg200R4 5.jpg

1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
Re: GEARVENDORS OR 518 [Re: Dabee] #2868377
01/03/21 08:45 AM
01/03/21 08:45 AM
Joined: Jan 2003
Posts: 8,005
Tulsa OK
Bad340fish Offline
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Tulsa OK
Originally Posted by Dabee
Originally Posted by Bad340fish
Tom Bailey's Sick 2.0 Drag week car that ran 5.99 in 2019 runs a GV, at one point in time it was said to have two of them but I don't know if it still does. I am sure he is not shifting it under power though.


A GV is a sun/planet gear setup with a cone shaped clutch and a piston pump for engagement. I see no reason why it can’t be engaged under power. I did it all the time. The gears are always engaged all you are doing is apply the clutch. It’s a 1 to 1 ratio until the clutch is engaged. Also if my memory is right I believe the gears are straight cut. It’s been a number of years since I had a GV apart .
Here is an article that explains hot it works

https://www.gearvendors.com/hodrod-may00.html


Yes I know several people who use them as an extra gear on the track when spraying nitrous and some use it all the time. The car I mentioned above has 4000HP is the only reason I said that laugh


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: GEARVENDORS OR 518 [Re: furious70] #2868451
01/03/21 12:47 PM
01/03/21 12:47 PM
Joined: Jan 2003
Posts: 11,894
Benton, IL.
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DaveRS23 Offline
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Benton, IL.
[quote=furious70]with the a500 or 518 you can't run OEM console shifter linkage (the girth gets in the way of the down rod).

tsk That's not true. I have the stock rod in my Cuda. It took a little modding of course, but nothing too major. It works fine and that is with a FMVB, so it gets the full work-out.

And the 2 1/4 TTIs clear the 518 okay. They are close, but clear.

Here is a pic of an early mock-up:

[Linked Image]


Master, again and still
Re: GEARVENDORS OR 518 [Re: DaveRS23] #2868480
01/03/21 02:18 PM
01/03/21 02:18 PM
Joined: May 2005
Posts: 4,681
Florida
BDW Offline
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Florida
Agreed, I have the stock shifter in my 70 Challenger/340/518 with no issues with the stock shifter linkage.

Re: GEARVENDORS OR 518 [Re: DaveRS23] #2868484
01/03/21 02:23 PM
01/03/21 02:23 PM
Joined: Sep 2003
Posts: 19,239
north of coder
moparx Offline
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north of coder
dave, do you have a pic of the linkage after you got it perfected ?
if so, could you post it ? TIA ! bow
beer

Re: GEARVENDORS OR 518 [Re: moparx] #2868621
01/03/21 08:04 PM
01/03/21 08:04 PM
Joined: Jan 2003
Posts: 11,894
Benton, IL.
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DaveRS23 Offline
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I don't guess that I do. I looked for a better pic than the one I posted, but they all had the headers in the way.

I ground a groove in the 518 case to help with the vertical shaft angle. The tricky part for me was fabbing up the arm that goes from the vertical shaft to the shift lever on the tranny. It had to kinda wind around a bit to clear everything. There is a lot going on in a small space. But it works good. No problems in the 4 or 5 years that I have had it together.


Master, again and still
Re: GEARVENDORS OR 518 [Re: jbc426] #2868650
01/03/21 09:27 PM
01/03/21 09:27 PM
Joined: Dec 2003
Posts: 22,695
Bitopia
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jcc Offline
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Originally Posted by jbc426
I drove around my buddy Mike Musto's B-Body with a 727 & Gear Vendors for a weekend. It was just too litlle of a good thing with that .78 to 1 OD. I wouldn't bother for that little of an improvement.

Then again I run an Extreme Automatics Stage 2 2004R with a 3800 rpm lock-up converter from Precision of New Hampton behind my 408 Magnum. It's the best performing transmission I've ever driven and has a 2.76 to 1 first gear and a .67 OD. Locking up the converter makes it seem like a 5 speed by dropping about 350 rpm in 4th. I painted it black and put a Mopar sticker on it for the purists.

Although if you have over 1000hp & 850tq, you would have to upgrade to a Stage 3 version.


Was the second pic framed to line up the TB sockets or was that just a bit of luck? work



Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: GEARVENDORS OR 518 [Re: jcc] #2868730
01/04/21 01:01 AM
01/04/21 01:01 AM
Joined: Mar 2007
Posts: 3,275
West Coast, USA
jbc426 Offline
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Posts: 3,275
West Coast, USA
Originally Posted by jcc
Originally Posted by jbc426
I drove around my buddy Mike Musto's B-Body with a 727 & Gear Vendors for a weekend. It was just too litlle of a good thing with that .78 to 1 OD. I wouldn't bother for that little of an improvement.

Then again I run an Extreme Automatics Stage 2 2004R with a 3800 rpm lock-up converter from Precision of New Hampton behind my 408 Magnum. It's the best performing transmission I've ever driven and has a 2.76 to 1 first gear and a .67 OD. Locking up the converter makes it seem like a 5 speed by dropping about 350 rpm in 4th. I painted it black and put a Mopar sticker on it for the purists.

Although if you have over 1000hp & 850tq, you would have to upgrade to a Stage 3 version.


Was the second pic framed to line up the TB sockets or was that just a bit of luck? work



It was kind of like Jupiter and Saturn the other day. If we were anywhere else in the solar system, it would not have lined up.


1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
Re: GEARVENDORS OR 518 [Re: jbc426] #2868836
01/04/21 12:58 PM
01/04/21 12:58 PM
Joined: Dec 2003
Posts: 22,695
Bitopia
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jcc Offline
If you can't dazzle em with diamonds..
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Posts: 22,695
Bitopia
haha


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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