what does this mean? please help.... knowbody has known so far

[jeffs89gt]

the tag on my diff says 3SL27. theres other stuff after it but i am only concerened about the gearing. i know the car has 3.27s cause i got underneath it and marked the fender and tire with tape and it took 3 1/4 turns of the driveshaft to make the tape marks line back up. it is a 89 gt 5 speed. i got it from the original owner and he said nothing in the drive line has ever been replaced? what is going on with this??????!!!!!!!!!! please help. :worship:

 

[90mustangGT]

I belive you are correct. To separate the whole number from the decimal, they put what kind of diff it is. I belive SL means semi-locking or something like that. I belive 3.27's were an option for some cars.

 

[HISSIN50]

There is a door-tag code on 94-95's, but I cant remember if foxes have one as well. Makes it easier to check.

3.27's were an option for automatics (as 3.08's were optional for sticks).

Good luck.

 

[jeffs89gt]

all cars have the door tag code. the guy who i got it from had the car repainted and the tags thrown away. i know for shure its 3.27s from doing the tape thing but i just dont know what the SL means. my friend with a 92 lx with 2.73s has a tag on his rear that says 2L73. idk what the s is for and y my car has 3.27s

 

[RiceRocketeer]

3sl27

SL is just another suppliers tag for Slip Limited. The ford book I have states that 3SL27 is just another tag for Traction Lock 3.27 ratio.

 

[grey5.0beast]

i thought 3.27s were only an option for autos.or maybe im smokin sumthin.