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Adger Smith · 05-06-2023, 07:22 PM

With the power level and weight you will have I would consider a 8 3/4 Detroit locker. The Locker for the 489 case fits up to 4.56 gears.
Most of the time a Locker will have a spool beat on MPH. 30 spline gives you plenty of choices in Stock or stock re-splined axels That
are budget friendly and plenty strong. If you do go all out on axels a 30 spline has a weight advantage.
I'm not sure, but you might even find a gun drilled 30 is available.
.02 for free

05-06-2023, 07:22 PM	#4
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Rear housing Question With the power level and weight you will have I would consider a 8 3/4 Detroit locker. The Locker for the 489 case fits up to 4.56 gears. Most of the time a Locker will have a spool beat on MPH. 30 spline gives you plenty of choices in Stock or stock re-splined axels That are budget friendly and plenty strong. If you do go all out on axels a 30 spline has a weight advantage. I'm not sure, but you might even find a gun drilled 30 is available. .02 for free __________________ Adger Smith (Former SS)