Just to be clear, there is no such thing as a .54 gear. It is the combination that ends up giving you .54, the actual gear is a .72.
Read the top above the chart: http://garage-scene.com/t5-into-ag-body ... ratios.htm
With 3.73z , on my daily commute, I always found myself being "stuck" between 4th and 5th.
Revs too high in 4th, to low in 5th (effective ratio of 2.01!!). Almost 50% ratio drop is too much for a small block, now behind a Pontiac 400........
I paid attention to the lowest rpm the car liked (1150), did some math and then put in the 4.11z.
It is perfect and fun.
Read the top above the chart: http://garage-scene.com/t5-into-ag-body ... ratios.htm
With 3.73z , on my daily commute, I always found myself being "stuck" between 4th and 5th.
Revs too high in 4th, to low in 5th (effective ratio of 2.01!!). Almost 50% ratio drop is too much for a small block, now behind a Pontiac 400........
I paid attention to the lowest rpm the car liked (1150), did some math and then put in the 4.11z.
It is perfect and fun.