Thats just my question. In my 83, it shifts itself at about 4800rpm even with me holding the shifter in 1st. Now in 2nd and 3rd, you can hold it all the way as high as you want it. How do you get around this 1st gear thing?

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1983 T-top Trans Am. All stock (for now) LG4/auto/3.73 posi. 70,000 original miles. SLOWLY going through a Knight Rider conversion. (it will be done one of these years)

 

The only kit that offers the ability to hold any gear to any speed in the 700R4 is the Trans-Go Performance Shift Kit.

 

I don't seem to have the problems other people have had w/ my 700. It is an '87 unit, and I know it will hold first gear because when I first put the TPI on, I was so pumped I was goofing off in the parking lot one day and had it up to 6000 and it started floating the valves (misfiring and all) and it never shifted.

I also noticed that it shifts into OD at WOT. I found this out the first time I went to the track and didn't think about leaving it in D.

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'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Whatever chip I feel like burning,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
3.73 Posi
4wheel Disc Brakes
Summit 1-5/8" headers, 2.5" Dynomax catback.

Best 1/8: 9.519@72.74

'97 Bonneville SSE