There is a very large class of people that own 65/66 Mustangs that, as far as I can tell, anyway, have been, for the most part, ignored entirely. They don't really want that 100 pt. show car that is so nice and was soooo expensive that they're afraid to drive it, they also don't want to make their car capable of achieving warp factor three. They just want this car that they dearly love to be able to cruise around smoothly and reliably, without having it dump them out on the side of the road or have it start making weird noises or belching out big clouds of funky-smelling smoke. And I think, truth be told, that this is by far the largest class of Mustang owners. They take their car to some technician when what they actually need is a mechanic, and this, frequently, does not work out very well at all for the owner. They don't want to re-engineer the entire car, they just want someone to fix what broke. These are the people that I am trying help out with this blog. Some problems require a little bit of back and forth, as in, "Try this." "I tried that and it didn't change anything."
" Oh. well, you probably need to try that." " I tried that and it helped, but it still isn't quite right." "Now you need to try this...." If you go to http://www.allfordmustangs.com/ and then go to the classics forums, you will be able to do that with a pretty hefty gathering of some very knowledgeable people that also happen to be very friendly. None of that ridiculous one-upmanship, no flaming or abuse, none of that stuff. Just good, solid advice from people that know what they are talking about.

Sunday, August 26, 2012

Axle code on the door tag of a Mustang 1965 / 1966

People sometimes ask about how to determine which rear end their came with, and the list of options on that one is surprisingly limited. Here is that list of axle codes with their gear ratios correlated with engine code. There was a limited slip version of all of these rear ends, which had a different code, but, those were extremely rare in all but the 9 inch rear end used exclusively in the K codes.

K( on 64 1/2s) 3.89/8 or 4.11/9
T(with manual tranny) 3.20/3
T (with automatic tranny) 2.83/2
K  (on 65s)3.50/5, 3.89/ 8 or 4.11/9
K(on 66s) same as 65, except the limited slip 3.50 gear had a code of E, and the 4.11 was no longer available.