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But one with a bit of a twist....
I currently have a fully built 8.75 in my Swinger that lived behind a 512 torque monster and propelled it to 9.75 with a 1.35 60' (2900 lbs). The rear is a 742 with strange 30 spline spool and axles, back brace, C/M yoke and M/W caps. I always swap out the ring and pinion after 300 passes and have never had any issues. I am putting a turbo'd 5.7 Hemi with a glide in it over the winter. Target HP is 800 (the 512 had close to 600). My question is, will the 8.75 live? I expect the car to launch abit softer with the turbo and glide. Also I will be switching the gears from 3.91 to 3.23's or less. Are the higher ratio ring and pinions stronger or weaker?

Thanks

Dave

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MY opinion is that the lower the number the stronger the gears are.
The turbo does in general have a softer hit.
The biggest problem with the 8 3/4 is that there is not pro gears (Soft gears) for it.

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If I was you, and the 30 spline axles are okay, I would try it Nothing like learning first hand

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I hear ya Cab but at what expense.........