Tranny swap done couple questions

[squeeeg]

1. How many tooth is the purple speedo gear. I have a purple one in there now and my speedo reads 52-53 at 55mph

2. How long should i break in the tranny before i get on it. I am just itching to get my foot into the floorboard

 

[charlesw6954]

500 miles or so to break the tranny in. did you replace your clutch while you're at it?

 

[squeeeg]

It has a new clutch in it with only like 2000 miles or so on it. It looked perfect when I looked at it. I was prepared to do it I just didn't have to.

 

[squeeeg]

Nobody else can help me out??

 

[04sleeper]

What type of tranny do you have? If you have a TREMEC 3550 then you have to use a RED 21 tooth gear. If you have a stock tranny then you need a WHITE 23 tooth gear. Also you didn't say what size tires you have on the back.....If you put on bigger tires....(Taller) then this will affect your spedo as well.

 

[Mustang5L5]

Purple is an AOD 21-tooth speedo gear.

For a 5-spd, you should be using a RED 21-tooth gear if your trannt has a 7-tooth drive gear and i assume you are using 3.73's??