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Re: Is 23 to 18 spline posible?
[Re: mopar_man]
#881902
12/16/10 10:00 PM
12/16/10 10:00 PM
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JohnRR
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Quote:
output shaft is also diff, I believe most of the internals are diff too.
No , the mainshaft is the same for either trans .
It's more than just the spline count of the input shaft that makes the 18 spline trans stronger .
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Re: Is 23 to 18 spline posible?
[Re: Jim_Lusk]
#881903
12/16/10 10:02 PM
12/16/10 10:02 PM
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JohnRR
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Quote:
The output SHAFT is the same, but all the gears are different and cannot be mixed-n-matched. You could use the small 307 front bearing, but would have to buy the rare 66 18-spline bearing retainer.
Should be able to buy that piece as an aftermarket billet piece ?
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Re: Is 23 to 18 spline posible?
[Re: Stanton]
#881906
12/17/10 12:55 AM
12/17/10 12:55 AM
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Joined: Jan 2010
Posts: 234
ATL GA
demon1515
OP
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Quote:
Ok, BASICALLY ... you need to forget about screwing around with this thing. Sell the 23-spline and put the $$ towards an 18-spline. Do you honestly think you're going to find the 18-spline gears "loose" other than new ... dream on buddy! An then you'll still be bastardizing the unit by using the 307 bearings.
Yes, its nice to take on some challenges but this one will cost you more time and money to piece together ... if you ever get there.
I know what you mean and yeap with a litlle more i'll get a GR-5 clutch assisted G-Force trany, and really i dont care of bastardizing a 833 as long as i found the parts for cheap,By the way Brewers have the gear set for 840 something, i can put it together myself, but i was just asking, i will use my 23 spline trany the way it is and if it fails then i'll better buy a G-Force unit and done with it!
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Re: Is 23 to 18 spline posible?
[Re: JohnRR]
#881907
12/17/10 02:25 AM
12/17/10 02:25 AM
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Joined: Mar 2003
Posts: 18,678
Fresno, CA
Jim_Lusk
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Quote:
Quote:
The output SHAFT is the same, but all the gears are different and cannot be mixed-n-matched. You could use the small 307 front bearing, but would have to buy the rare 66 18-spline bearing retainer.
Should be able to buy that piece as an aftermarket billet piece ?
I believe so. I researched when I had my 66 hemi trans that was missing the bearing retainer. I wound up selling the trans and bellhousing when I decided that my next project (this was before I got my Barracuda convertible in 2006) would get an automatic so that my wife could drive it, too.
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Re: Is 23 to 18 spline posible?
[Re: demon1515]
#881908
12/17/10 12:04 PM
12/17/10 12:04 PM
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Joined: Jan 2003
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JohnRR
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Quote:
Quote:
Ok, BASICALLY ... you need to forget about screwing around with this thing. Sell the 23-spline and put the $$ towards an 18-spline. Do you honestly think you're going to find the 18-spline gears "loose" other than new ... dream on buddy! An then you'll still be bastardizing the unit by using the 307 bearings.
Yes, its nice to take on some challenges but this one will cost you more time and money to piece together ... if you ever get there.
I know what you mean and yeap with a litlle more i'll get a GR-5 clutch assisted G-Force trany, and really i dont care of bastardizing a 833 as long as i found the parts for cheap,By the way Brewers have the gear set for 840 something, i can put it together myself, but i was just asking, i will use my 23 spline trany the way it is and if it fails then i'll better buy a G-Force unit and done with it!
That would be the best thing to do , or just buy an 18 spline trans and take the guts and put them in your 23 spline trans .
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Re: Is 23 to 18 spline posible?
[Re: JohnRR]
#881909
12/17/10 01:41 PM
12/17/10 01:41 PM
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Joined: Oct 2005
Posts: 8,881
Ontario, Canada
Stanton
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Quote:
just buy an 18 spline trans and take the guts and put them in your 23 spline trans
????? Why the **** would you do that ?????
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Re: Is 23 to 18 spline posible?
[Re: Stanton]
#881911
12/17/10 02:56 PM
12/17/10 02:56 PM
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Joined: Apr 2003
Posts: 12,235
Looking for a way out of Middl...
IMGTX
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Quote:
Quote:
just buy an 18 spline trans and take the guts and put them in your 23 spline trans
????? Why the **** would you do that ?????
It appears he is wanting an 18 spline in an A-body.
A bodies a used shorter trans and the factory didn't make 18spline A-body transmissions. (Hemi Hurst Barracuda's not included)
No way to do that except buying one built, doing it your self or dealing with a B/E body trans in an A body modifications. 
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Re: Is 23 to 18 spline posible?
[Re: Stanton]
#881912
12/17/10 03:03 PM
12/17/10 03:03 PM
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JohnRR
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Quote:
Quote:
just buy an 18 spline trans and take the guts and put them in your 23 spline trans
????? Why the **** would you do that ?????
Why the do YOU care ?
First the guy asked an question and you answered it , when he asked another question YOU decided to interject your opinion instead of answering his question. And now you are asking me a stupid question that doesn't answer the OP's question.
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Re: Is 23 to 18 spline posible?
[Re: demon1515]
#881913
12/17/10 03:09 PM
12/17/10 03:09 PM
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JohnRR
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Quote:
the only output shaft that changes are the old short shaft A-body 833 trany that uses the small spline count output shaft like a 904 auto trany but the rest uses the same 30 spline 727 style one and newer short tailshaft A-body 833 also uses the 30 spline 727 style!
No this is not true , all the iron case 833 I have had were all 30 spline , only 904 sized A body trans I have seen is the alum OD case trans .
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Re: Is 23 to 18 spline posible?
[Re: JohnRR]
#881914
12/17/10 03:16 PM
12/17/10 03:16 PM
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Joined: Oct 2005
Posts: 8,881
Ontario, Canada
Stanton
Don't question me!
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Don't question me!
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Quote:
Why the **** do YOU care ?
Because I'm a caring person !!
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Re: Is 23 to 18 spline posible?
[Re: Stanton]
#881915
12/17/10 03:19 PM
12/17/10 03:19 PM
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Joined: Jan 2003
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JohnRR
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Quote:
Quote:
Why the **** do YOU care ?
Because I'm a caring person !!
I'm finding that one hard to believe 
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Re: Is 23 to 18 spline posible?
[Re: JohnRR]
#881917
12/17/10 03:36 PM
12/17/10 03:36 PM
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Joined: Jan 2003
Posts: 4,285
Ohio
64dodge572
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Ohio
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Quote:
Quote:
the only output shaft that changes are the old short shaft A-body 833 trany that uses the small spline count output shaft like a 904 auto trany but the rest uses the same 30 spline 727 style one and newer short tailshaft A-body 833 also uses the 30 spline 727 style!
No this is not true , all the iron case 833 I have had were all 30 spline , only 904 sized A body trans I have seen is the alum OD case trans .
John-
66-7 A body trans was 26 spline (904) output except the 67 383 cars.
Brewers Performance Inc. 4-speed transmission and parts specialists PH 937-947-4416 or 937-698-4259 FAX 937-947-4419 www.brewersperformance.com
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Re: Is 23 to 18 spline posible?
[Re: 64dodge572]
#881919
12/17/10 07:08 PM
12/17/10 07:08 PM
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JohnRR
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Quote:
Quote:
Quote:
the only output shaft that changes are the old short shaft A-body 833 trany that uses the small spline count output shaft like a 904 auto trany but the rest uses the same 30 spline 727 style one and newer short tailshaft A-body 833 also uses the 30 spline 727 style!
No this is not true , all the iron case 833 I have had were all 30 spline , only 904 sized A body trans I have seen is the alum OD case trans .
John-
66-7 A body trans was 26 spline (904) output except the 67 383 cars.
Didn't know that , thanks for that correction.
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Re: Is 23 to 18 spline posible?
[Re: eds dart]
#881921
12/20/10 01:52 PM
12/20/10 01:52 PM
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Joined: Jan 2003
Posts: 2,431
USA
SSAAHemiFan
top fuel
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thanks for your post edssart. I have a b-body 18 spline and I want to build a A-body 18 spline for my barracuda. I was hoping with Jamie's new trans coming out that people will start getting off there original parts. 
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Re: Is 23 to 18 spline posible?
[Re: SSAAHemiFan]
#881922
12/20/10 01:56 PM
12/20/10 01:56 PM
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JohnRR
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Quote:
thanks for your post edssart.
I have a b-body 18 spline and I want to build a A-body 18 spline for my barracuda.
I was hoping with Jamie's new trans coming out that people will start getting off there original parts.
All you need is a 23 spline A body trans to make the swap .
The 18 spline market bottom falling out isn't going to happen with the release of the new Passon 5 speed.
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Re: Is 23 to 18 spline posible?
[Re: cudaman1969]
#881924
12/20/10 03:08 PM
12/20/10 03:08 PM
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JohnRR
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Quote:
why don't you just use the long tail shaft trans (18 spline) in the a-body and use the 727 drive shaft? that way you're not butchering anything and can always change it back at a later date.probably get all your money back too.
Then you have to rig up something so the shifter comes out in the right place, my car is a 4 speed already so I have no need to change the driveshaft. I just had to find a good a body mainshaft , I have 2 B body hemi trans with a broken ear on the case so I bought a Passon Aluminum case and tail.
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