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Author
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Topic: 390 4 speed trans Questions
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68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-15-2005 12:16 AM
   
I know the 390 4 speed trans is an odd bird but I thought I had it figured out.
[1] Has a small diameter input shaft with the big shaft end?
[2] Has the 28 spline output shaft like the small block trans?
[3] Has the tail housing like the 428 of Fairlane 289-390?
[4] Why did they use a different shifter location than a 289-351?
[5] Is the shifter and linkages the same as a Fairlane 289-390?
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Ed S. 68 S-code FB GT 4spd(now C6)/3.25 PS PDB
68 J-code(now 289) Cp Sprint"B" C4/3L00-9" PDB PS AC Bla-Bla-Bla
99 F150 XLT Ext/cab, 4X4, 5.4L, 3L55
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
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posted 12-15-2005 01:48 AM
All Mustang/Cougar stick transmissions have rear tail shaft shifter mount.
Fairlane/Comet had center tail shaft mount.
390 had small input shaft.
428 had large input.
They did not use different shifter locations for big block vs small block.
Only body dictated shifter location.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-15-2005 07:34 AM
It was my understanding from on here that the 390 4-spd had the 1 1/16? diameter input shaft but also had the same end that went into the pilot bushing like the 427 & 428. I see from the David Key site that the Tailhousing for the 289-351 in the 64-73 Mustang is the same but the 66-68 Fairlane (289, 302, 390) and 67-69 Mustang (390) are the same. On the Hurst site they show install kit 373-7637 for Mustang 65-73 w/289-351, kit 373-5587 for 67-69 Mustang w/390, 428, 429 and kit 373-7638 for 66-69 Fairlane.The tailhousing and linkage kits are what I think is causing my confusion.
[This message has been edited by 68 S-code GT (edited 12-15-2005).]
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68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-15-2005 08:06 PM
Anybody else with some input?
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
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posted 12-15-2005 11:39 PM
Yes, 1 and 1/16 on a 390 is correct as is all the other information I posted above.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
427Fastback
Gearhead Posts: 449
From: N.Vancouver.B.C
Registered: Jan 2005
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posted 12-16-2005 04:22 AM
There is nothing "odd" about the 390 trans..Alex is correct.The only difference between SB and 390 trans is the length of the pilot going into the crank.390s are aprox .300 shorter.They both use 28 spline out put shafts..
427/428 and 429 trans are the 1 3/8 inputs with 31 spline outputs (same as C-6) and were only offered in close ratio.. The shifter is the same for SB and 390 trans.
You can convert your SB trans to use on a 390 in about 15 minutes Cory ------------------
68 Fastback 427MR 4 spd.Deluxe interior,8000 tach,140 speedo,am/fm,tilt.
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68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-16-2005 12:43 PM
So the David Kee site is incorrect and Hurst is selling install kits that are for God knows what?[This message has been edited by 68 S-code GT (edited 12-16-2005).]
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
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posted 12-16-2005 03:11 PM
I covered this Hurst shifter catalog explantion in great detail last year on another thread.  May have been on the Mid Size Ford forum. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
427Fastback
Gearhead Posts: 449
From: N.Vancouver.B.C
Registered: Jan 2005
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posted 12-16-2005 03:24 PM
I have two small block toploaders here,one w/ratio,one c/ratio both are RUG trans and both are for Mustangs.One has the shifter mount at the back and one in the middle.The middle mount trans uses a "Factory" steel reloction plate moving the shifter to the rear..
Technically the tailshaft housing are different...
I have never found there to be a difference between 390 and SB shifters
I am aware of what Hurst says but i have never sat down and checked the numbers to see if it is the mounting plate,shifterbox or rods that they say is differentCory ------------------
68 Fastback 427MR 4 spd.Deluxe interior,8000 tach,140 speedo,am/fm,tilt.
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68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-16-2005 03:45 PM
Sorry Alex but the search feature is on the fritz or by what Steve says sound like the server kneads a good burp or something.Maybe the difference in the tail housings is because of a supply and demand problem on the assembly line.
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
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posted 12-16-2005 04:08 PM
The relocation plate was used due to a surplus of mid mount transmissions.
Far greater demand for Mustang/Cougar 4 speed cars than Fairlane/Comet.
You need to read the Hurst catalog/web site more carefully.
They only offer 1 (one) shifter assembly and two installation kits.
The shifters will work on either installation as long as you have the appropriate corresponding kit for the application desired.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-16-2005 04:14 PM
I know the shifter was the same but there were two install kits. On the Hurst site they show install kit 373-7637 for Mustang 65-73 w/289-351, kit 373-5587 for 67-69 Mustang w/390, 428, 429 and kit 373-7638 for 66-69 Fairlane.
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
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posted 12-16-2005 04:41 PM
quote:
Originally posted by 68 S-code GT:
I know the shifter was the same but there were two install kits. On the Hurst site they show install kit 373-7637 for Mustang 65-73 w/289-351, kit 373-5587 for 67-69 Mustang w/390, 428, 429 and kit 373-7638 for 66-69 Fairlane.
373-7638 is for Fairlane/Comet with a top loader.
373-7637 is for Mustang/Cougar with a top loader.
------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 12-16-2005 04:47 PM
I was looking at the online catalog and the also show kit 373-5587 for 67-69 Mustang w/390, 428, 429. Maybe there is a mistake online?
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
|
posted 12-16-2005 11:43 PM
I have a hard copy Hurst catalog that I am getting my data from.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
68 S-code GT
Gearhead Posts: 3523
From: Sayreville, NJ, US
Registered: Mar 2000
|
posted 12-22-2005 08:01 AM
quote:
Originally posted by 427Fastback:
The only difference between SB and 390 trans is the length of the pilot going into the crank.390s are aprox .300 shorter. You can convert your SB trans to use on a 390 in about 15 minutes
Ok, So it?s just the nose or the pilot end of the shaft is different between the two. I think the 390s nose is ??. You say it can be converted in 15 minutes. How would you do this? I was thinking of bringing it to a machine shop but if it?s simple enough then I should be able to do it and save a few dollars.
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Moneymaker
Administrator Posts: 28191
From: Lyons, IL, USA
Registered: May 99
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posted 12-22-2005 09:55 AM
Cutting wheel or sawzall.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First NHRA & IHRA 289 automatic Superstock Mustang in the TENS 06-99
First SS/MA in the TENS 04-03
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
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