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b4c 700r4 3-4 WOT upshift?

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Old Mar 1, 2010 | 05:03 PM
  #1  
darkhorse91's Avatar
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Joined: May 2003
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From: Runnin' from the Reaper
Car: 91 B4C/91 RS 305
Engine: L98 and L03
Transmission: 2xTH700R4
Axle/Gears: 3.23 LSD/2.73 Open
b4c 700r4 3-4 WOT upshift?

I can't remember where but I could swear I heard that the b4cs had a different trans set up that allowed them to shift into 4th at WOT. Am i crazy or is this true?
I tried searching but got no results specific to what I was looking for

EDIT: i found mention of it in the FAQs but it doesn't specify whether it was put in the B4C Camaros or if it was just put in some police cars. I know it is called the b-body fix after doing more research so it makes me think my car didn't come with it

Last edited by darkhorse91; Mar 1, 2010 at 05:15 PM.
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Old Jan 9, 2012 | 01:20 PM
  #2  
b4c-1le's Avatar
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Joined: Nov 2007
Posts: 42
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From: New Hampshire
Car: "92 RS Camaro B4C/1LE 25th Anniv.
Engine: L98 w/corvette heads & ZZ4 cam
Transmission: built 700R4 with Hughs converter
Axle/Gears: 3.23 posi w/1LE brakes
Re: b4c 700r4 3-4 WOT upshift?

The B4C's did come with a different calibrated transmission which allowed the car to stay in 4th gear at WOT to reach speeds over 150mph. The "B-body fix" was a GM parts kit that had the necessary springs, a different servo, and other parts to convert a 700r4 to stay in 4th at WOT. The kit became available for B-Body police cars to allow them to reach higher speeds without down shifting. I have the part number kicking around somewhere, and probably have the kit as well as I recall buying it but never installing it.
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