Foxbody C4?

stangage · August 11th, 2009, 07:07 AM

I have a 89lx it has the stock AOD in it now and its goin out, I am building a new motor for it and want to replace the tranny as well, i have an extra AOD in good shape but I would like to put a C4 in, what yrs will bolt up and what things will i have to change for this to work? thanks for your help

flamestang · August 11th, 2009, 09:10 AM

basically you want a 1970+ c4 case fill there are lots of research you can google a 164 bell will let you keep your flex plate.but the 157 bell is smaller for header clearance.here is one link

C4 Transmission 101 - Click Click Racing Forums

rodeheavers · August 11th, 2009, 09:37 AM

yep, try to get a big bell, 26spline imput shaft with the stick in the case..

stangage · August 11th, 2009, 01:15 PM

great thanks, so anything after 70 will be good? what will i all have to change just the flex?

Silverfoxbody · August 13th, 2009, 08:47 AM

The AOD 164 t flex will work with the large converter - but yes you need the 157t flex for the small bell. 70+ would be best to get the reliability.

August 11th, 2009, 07:07 AM	#1
stangage Regular Join Date: May 2008 Posts: 283 iTrader: 0 reviews	Foxbody C4? I have a 89lx it has the stock AOD in it now and its goin out, I am building a new motor for it and want to replace the tranny as well, i have an extra AOD in good shape but I would like to put a C4 in, what yrs will bolt up and what things will i have to change for this to work? thanks for your help __________________ "That old Ford sure fast on the draw out run the Chevys and out run the law"

August 11th, 2009, 09:37 AM	#3
rodeheavers Regular 1981 4 EYED FREAK 9.48@147 Join Date: Mar 2009 Location: southwestern pa Posts: 328 iTrader: 0 reviews	yep, try to get a big bell, 26spline imput shaft with the stick in the case.. __________________ www.rodeheavershotrod.com 9.48@147 on pump gas through the mufflers, still has pw,tilt,t-tops,all lights, wipers!!!, check out the vid http://www.youtube.com/watch?v=SloE3Zdetac

August 11th, 2009, 01:15 PM	#4
stangage Regular Join Date: May 2008 Posts: 283 iTrader: 0 reviews	great thanks, so anything after 70 will be good? what will i all have to change just the flex? __________________ "That old Ford sure fast on the draw out run the Chevys and out run the law"

August 13th, 2009, 08:47 AM	#5
Silverfoxbody Newbie Join Date: Nov 2007 Posts: 44 iTrader: 0 reviews	The AOD 164 t flex will work with the large converter - but yes you need the 157t flex for the small bell. 70+ would be best to get the reliability. __________________ ------------------------- Dan Gilsdorf ---------------------------

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August 11th, 2009, 09:10 AM	#2
flamestang Regular Join Date: Apr 2007 Posts: 338 iTrader: 0 reviews	basically you want a 1970+ c4 case fill there are lots of research you can google a 164 bell will let you keep your flex plate.but the 157 bell is smaller for header clearance.here is one link C4 Transmission 101 - Click Click Racing Forums

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