Final Drive ratio, will a 3.25/1 be too steep ??

[V8COOPMAN]

Originally Posted by Bored&Stroked

You have a light car, so you'll probably be just fine - especially with a .87 OD. Are you sure the OD is that ratio? I've never seen that ratio in a T5 . . . but there is a first for everything. I've installed special road-race OD gear sets with a ratio of .80 - but that is as close as I've seen to your listed ratio.

Dale ...... What's one lousy digit among friends? All joking aside, this fairly comprehensive list (seen in link BELOW) does show quite a few of the early
"S"-truck, wimpy-assed T5s as having an .86 for an O/D ratio.

http://www.britishv8.org/Articles/Bo...T5-ID-Tags.htm

Of course, the majority of these all have the weenie gearsets with the worthless 4.03 or 3.76 1st gear ratios. And remember, MOST T5 gearsets won't allow you to just swap-in that sort of an O/D gear pair without swapping-in an appropriately matching, wimped-out gearset.

The MAIN gear, the FRONT gear on cluster, as well as the O/D gear pair figure into the formula to compute the OVERDRIVE ratio using number of teeth on gears for computation. O/D computation formula BELOW:

Number of teeth on front of cluster gear, divided by the number of teeth on MAIN (Input) gear, times number of teeth on SMALL O/D gear, divided by number of teeth on LARGE O/D gear, equals O/D ratio of 5-speed transmission.

Coop


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