Note to self...
Thanx to 64ValiantConv (Richard) for this info....
Another plus is that the a500(42rh) has a 1st gear ratio of 2.74/1 and 2nd gear is 1.54/1. That's a 12% gear reduction in first, making a rear axle with a 3.23 behave like a 3.61 and a 3.55 will behave like a 3.98.
Transmission A-500 904/727
Gear
First 2.74 2.45
Second 1.54 1.45
Third 1.00 1.00
Fourth 0.69 n/a
Reverse 2.21 2.21
The 42rh will bolt right up to the 273/318/360 LA small blocks.
Here's a link to a great article one of the FABO guys sent to me. It covers upgrading from a 727 to the a518, which will be identical in most aspects to the 904/a500 swap.
http://www.insuranceforhomeinspector...r/a518Swap.pdf
Thanx to 64ValiantConv (Richard) for this info....
Another plus is that the a500(42rh) has a 1st gear ratio of 2.74/1 and 2nd gear is 1.54/1. That's a 12% gear reduction in first, making a rear axle with a 3.23 behave like a 3.61 and a 3.55 will behave like a 3.98.
Transmission A-500 904/727
Gear
First 2.74 2.45
Second 1.54 1.45
Third 1.00 1.00
Fourth 0.69 n/a
Reverse 2.21 2.21
The 42rh will bolt right up to the 273/318/360 LA small blocks.
Here's a link to a great article one of the FABO guys sent to me. It covers upgrading from a 727 to the a518, which will be identical in most aspects to the 904/a500 swap.
http://www.insuranceforhomeinspector...r/a518Swap.pdf