Welcome. Good job on the SAS. Here is a
Link that tells you one way to figure out what ratio you have. Depending on what size tire you plan to run it may be good enough but more than likely not. If you plan on running a 35 in tire you are going to want somewhere in the 3.73 to 4.56 range depending on type of use. If it is more surface street and highway a 3.73 or 4.10 will probably work if its more off road then i would go with 4.56. The best thing to do is figure out what the ratio is currently and then figure out what you need to get the RPMs in the speed range that you will spend most of your time. If you are like me and daily drive as well as wheel it then its going to be a comprimise. I have 90 suburban with 4.10s
in it and i would like 4.56s but i drive it 40 miles a day on the freeway and the revs would be way to high.Oh and by the way we really like pictures.