Autoshift C4 or C6

Lee Valentine · 02-03-2019, 01:05 PM

If anyone does it would be Dynamic in CT.

ALMACK · 02-03-2019, 09:39 PM

PA Performance sells a C4 with the auto shift feature.
They call it their Pro Street Transmission.
Not sure if they sell the valve body by itself or not

http://www.performanceautomatic.com/...nsmission.html

FireSale · 02-04-2019, 12:46 PM

I looked this one up and the VB is available for purchase stand alone and bolt in. The C4 comes in two flavors designated by year and the input shafts are different so check the part# on your trans before you do anything. This is a bit difficult to figure. The description read auto shift in D with manual on demand but the instruction download gives directions for installing a TB making it a full manual shift. Other parts of the documentation indicate auto shift for AOD.

PA makes good stuff. I use their internal TB valve body, shift solenoid and roller bearing upgrades. My roller kit included an upgraded piston for the rear solenoid because they had been seeing breakage here. It was massive.

That said, documentation and customer support, not so.

$420 for 65-69 C4
$320 for 70 and up
$300 for C6 up to 76

I ran a TCI Street Fighter with a full manual TB valve body and 3500 stall converter on the street and towed a trailer to the strip for two years with no issues other than trans heat in heavy traffic. My advice is skip the autoshift and spare the wrath of the three pedal racers.

02-03-2019, 01:05 PM	#1
Lee Valentine Senior Member Join Date: May 2004 Location: Brookfield, CT Posts: 708 Likes: 13 Liked 319 Times in 68 Posts	Re: Autoshift C4 or C6 If anyone does it would be Dynamic in CT. __________________ Lee Valentine 1661 STK

02-03-2019, 09:39 PM	#2
ALMACK VIP Member Join Date: Jan 2009 Location: Bardstown, KY Posts: 1,935 Likes: 129 Liked 369 Times in 127 Posts	Re: Autoshift C4 or C6 PA Performance sells a C4 with the auto shift feature. They call it their Pro Street Transmission. Not sure if they sell the valve body by itself or not http://www.performanceautomatic.com/...nsmission.html __________________ Alan Mackin Stock 3777/ SS 3377 P/SA & SS/PA Fox Thunderbird I/PS '95 Mustang GT

02-04-2019, 12:46 PM	#3
FireSale VIP Member Join Date: Feb 2014 Location: Lakewood Washington Posts: 1,407 Likes: 29 Liked 237 Times in 126 Posts	Re: Autoshift C4 or C6 I looked this one up and the VB is available for purchase stand alone and bolt in. The C4 comes in two flavors designated by year and the input shafts are different so check the part# on your trans before you do anything. This is a bit difficult to figure. The description read auto shift in D with manual on demand but the instruction download gives directions for installing a TB making it a full manual shift. Other parts of the documentation indicate auto shift for AOD. PA makes good stuff. I use their internal TB valve body, shift solenoid and roller bearing upgrades. My roller kit included an upgraded piston for the rear solenoid because they had been seeing breakage here. It was massive. That said, documentation and customer support, not so. $420 for 65-69 C4 $320 for 70 and up $300 for C6 up to 76 I ran a TCI Street Fighter with a full manual TB valve body and 3500 stall converter on the street and towed a trailer to the strip for two years with no issues other than trans heat in heavy traffic. My advice is skip the autoshift and spare the wrath of the three pedal racers. __________________ Dale Shearon 68 Mustang 6394