Head fire rings

[DVT873]

(05-21-2022 )Rawze Wrote:  

(05-21-2022 )FnG92 Wrote:  What's the heaviest weight you think 3.55 rear could pull safely or with minimal wear? (Isx15 2350 450 hp stock mandated above 80k with 10 spd)

3.55's are in the taller range for even 80k gross weights... so the answer would be in fact 80k.

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here are the numbers for 22.5 low-pro tires ....

On the lowest rpm, no load ...


Optimal RPM When pulling hills, mountains, etc...


Sustained top end speed ...

Tags:

eaton rear ratio charts, eaton axle ratios, rear ratios, rear end ratios, rear end charts, rear ratio vs weights, weights vs ratios

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Rawze
Probably a dumb question. When ratio's are being discussed I do not see trans final ratios mentioned. I have always thought that final ratio was trans ratio x rear axle ratio. If rears are 3.54 final will vary if trans is a .82 OD vs Direct. What am I missing. In calculating road speeds many times over the years I know the trans ratio has to be part of the calculation just like RPM and tire size.