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

How can I have 4th and not 2nd??? 700R4

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Old Sep 24, 2005 | 09:15 AM
  #1  
g_roc's Avatar
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From: Northern Ontario
Car: 1990 Iroc-Z
Engine: L98
Transmission: 700R4
How can I have 4th and not 2nd??? 700R4

I just got this transmission rebuilt by professionals but they never test drove/check all the gears. At first i had all gears but 3rd was shifting too early into 4th. got that fixed after driving around and shifting it manualy. Now I have 3rd working great but second disappeared??? Any ideas on what is sticking? I will go back to the franchise and get it fixed if i can not do it myself but it is 7 hours away!!!
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Old Sep 24, 2005 | 09:42 AM
  #2  
Dyno Don's Avatar
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Second gear is the band, so any number of things could be wrong.
Servo, band pin, or band itself.
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Old Sep 24, 2005 | 09:46 AM
  #3  
Z28cross-fire's Avatar
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Joined: Aug 2004
Posts: 456
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Car: '94 Z28
Engine: LT1 350
Transmission: 4L60E/A4
Did you call them or any other transmission shops and have them look at it or tell them about it? I'd start there. It's kind of hard to say without driving it or looking at it.

And yes, 2nd gear has a lot of problems because of the band.
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Old Sep 24, 2005 | 11:16 AM
  #4  
g_roc's Avatar
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From: Northern Ontario
Car: 1990 Iroc-Z
Engine: L98
Transmission: 700R4
I will contact them monday. Just curious but if second did work before and now doesn't can the anchor pop out or come loose anytime? Will it hurt it to drive it right now IF it was the band just not anchored?
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Old Sep 24, 2005 | 11:18 AM
  #5  
g_roc's Avatar
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From: Northern Ontario
Car: 1990 Iroc-Z
Engine: L98
Transmission: 700R4
Can i just remove the cover for 2 servo and see if it is free or stuck?
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Old Sep 24, 2005 | 11:30 AM
  #6  
g_roc's Avatar
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Joined: Nov 2004
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From: Northern Ontario
Car: 1990 Iroc-Z
Engine: L98
Transmission: 700R4
Incase anyone misread it. 1, 3 and 4th work good (so the band should be working?) but second is missing completely. am just curious about what maybe wrong, and i will return it to get properly fixed.
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Old Sep 24, 2005 | 12:57 PM
  #7  
Floor guy's Avatar
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From: Nanticoke, Pa
Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
I do not think anyone misread it. The 2/4 servo is a complicated little gadget. Your problem is possibly there. The servo pin needs to be set using a selective length pin. The tool that measures this is specific to the 700r4/4l60 trans. It is a pricey tool. $350 or so. Therefore, alot of people who build transmissions do not have this and simply hope for the best. Let's hope your pin length is incorrect. It is an easy fix if the damage has not been done yet.
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Old Sep 24, 2005 | 02:56 PM
  #8  
g_roc's Avatar
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From: Northern Ontario
Car: 1990 Iroc-Z
Engine: L98
Transmission: 700R4
Thank you for all the replies.
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Old Sep 24, 2005 | 08:01 PM
  #9  
87zjeff's Avatar
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From: louisville, ky
Axle/Gears: '01 3.42 10 bolt
2nd and 4th use the same band and pin to achieve the respective gear.
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Old Sep 25, 2005 | 10:14 AM
  #10  
BT283's Avatar
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From: Hickory, NC
Car: 1991 Camaro RS, 1993 Camaro Z-28
Engine: what engine, LT1
Transmission: did it come with one, 4l60
Axle/Gears: They spin (most of the time)
2nd is always the first to take a dump!!
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