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Old 10-18-2008, 04:16   #1 (permalink)
460 Project
 
Join Date: May 2007
Location: Australia
Posts: 6
confused c4 to c6 conversion plus what diff to use

Hi all
I am building up a car and have a few questions about the auto and diff ratio.
First of all the car is a 1978 ford falcon which had a 302 cleveland with c4
auto in it.
It now has a 460 big block and c6
first question is will the c4 speedo cable work with a c6 ( I am yet to get one)
and i have heard that if it does the speedo reading may be out due to the
different auto.
Second question is about the diff and ratio
The diff is the standard 2.92 lsd ( not nine inch )
Will this diff be up for the task of the 460 and what would it be like with the 2.92 ratio.
Diff ratios are new to me and i dont fully understand them.
I have been told to go with a nine ince with 4.11 ratio but trying to find that with lsd and disc brake is fairly hard ( And very very expensive ).
Any help would be great
Thanks XA460
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