Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Transmission downshift cable won't reach

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Old Jan 18, 2010 | 11:42 PM
  #1  
mjdavis68's Avatar
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
Transmission: It's in there....
Axle/Gears: 9 bolt Borg-Warner
Transmission downshift cable won't reach

Guys i bought this 88 iroc project 350 tpi originally.i got it with a carb conversion? why? Im at rhe point where im connecting the throttle,cruise and trans downshift cables and the trans wont reach? anyway i route it, it won't reach.my question is are there different length's for the stock 700r's

thanks for your help
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Old Jan 19, 2010 | 12:52 PM
  #2  
camaronewbie's Avatar
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Transmission downshift cable won't reach

I believe the TPI cables were different than the TBI or carb cables. You want to make sure it's right - this isn't simply a downshift cable but a TV cable, and it's critical to the proper shifting of the tranny - incorrect and the tranny can fry very quickly!

Make sure you have a good strong sturdy mount for the cables, and a geometry corrector for the carb to attach the TV cable to - the geometry corrector is critcal as well!
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Old Jan 19, 2010 | 07:09 PM
  #3  
mjdavis68's Avatar
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
Transmission: It's in there....
Axle/Gears: 9 bolt Borg-Warner
Re: Transmission downshift cable won't reach

thank you,i thought something wasn't right,and i have the factory bracket for this,thats another reason i knew its not right

thanks again newbie
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Old Jan 21, 2010 | 09:50 PM
  #4  
ziggy89's Avatar
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From: Muscatine IA
Car: 91 Firebird Formula
Engine: 383
Transmission: built 700r4
Axle/Gears: 4.11, 9inch
Re: Transmission downshift cable won't reach

not even the tbi cables are right.
i had to modify mine it would connect to the carb bout it wouldnt reach if it was in the bracket or wouldnt detent. (cant quite rember over a year ago lol)
either way the way i did it i made my own bracket for the thorttle cable and tv cable to run thourgh and connect to the carb. mad it out of a qjet and a tbi bracket
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Old Jan 23, 2010 | 10:43 AM
  #5  
Jrgunn5150's Avatar
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From: Muskegon Michigan
Car: 1989 RS
Engine: 5.0
Transmission: 700r4
Axle/Gears: 8.8 3:55
Re: Transmission downshift cable won't reach

If I remember correctly, there are 13 different 700r4 kickdown cables used... Seriously. So, in my opinion, the easiest, safest thing to do is use one of the univeral ones and cut it to length.
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Old Jan 24, 2010 | 07:29 AM
  #6  
camaronewbie's Avatar
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Transmission downshift cable won't reach

As far as I know, there were only 3 or 4, not 13 - a TPI, a TBI, a carb, and maybe a different one for the cross-fire injection - the only 4 intake options available from factory.

These are TV cables, NOT kickdown cables - they are self adjusting units, and by design I don't see how any "cut to length" universal cable could work as the lenghth of the cable and it's housing must be set in order for the system to work. A kickdown cable just pulls, where as a TV cable pulls a specific amount, and the geometry of such (including how far it 'pulls') is critical to the proper operation of the trans.

If a proper cable mount location, a proper cable bracket, and a proper cable geometry is attained with a proper geometry corrector, then everything will work as it should.
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Old Jan 25, 2010 | 11:27 AM
  #7  
Jrgunn5150's Avatar
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From: Muskegon Michigan
Car: 1989 RS
Engine: 5.0
Transmission: 700r4
Axle/Gears: 8.8 3:55
Re: Transmission downshift cable won't reach

Originally Posted by camaronewbie
As far as I know, there were only 3 or 4, not 13 - a TPI, a TBI, a carb, and maybe a different one for the cross-fire injection - the only 4 intake options available from factory.

These are TV cables, NOT kickdown cables - they are self adjusting units, and by design I don't see how any "cut to length" universal cable could work as the lenghth of the cable and it's housing must be set in order for the system to work. A kickdown cable just pulls, where as a TV cable pulls a specific amount, and the geometry of such (including how far it 'pulls') is critical to the proper operation of the trans.

If a proper cable mount location, a proper cable bracket, and a proper cable geometry is attained with a proper geometry corrector, then everything will work as it should.
There were also versions for trucks, vans, S-10's, car's, etc...So by now, who knows where the cable came from.

They are indeed TV cables, technically, as I stated, however, many people refer to them as "kick down" or "passing gear" cables. The technical name doesn't change what many people call them, so I was merely making sure everyone was on the same page...

A cut to length kickdown cable works, because you cut it to length. The geometry is determined by thelinkage and bracketry, not the cable itself.
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