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03-03-2015, 08:53 AM | #1 |
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GM 8.5 ten bolt crush sleeve
Curious what crush sleeve styles everyone uses/likes for a GM 8.5 10 bolt.
1. Stock type - tough to crush(who makes the best) 2. Ratech Smart Sleeve- seems a better design easier to crush: http://www.ratechmfg.com/smart%20sleeve.htm 3. Solid sleeve/spacer with shims(who makes the best) 4. Other? Thanks
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Mike Moller NHRA 203 Q-R-T/SA |
03-03-2015, 11:33 AM | #2 |
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Re: GM 8.5 ten bolt crush sleeve
Go with solid.
Ratech and Yukon gear sells the kit. They also have them in Ebay. http://www.ebay.com/itm/GM-8-5-Solid...315060&vxp=mtr |
03-03-2015, 01:21 PM | #3 |
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Re: GM 8.5 ten bolt crush sleeve
Swapped to the Ratech smart sleeve last year in our 12-bolt...still going strong.
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Rich Taylor I/SA - 321 |
03-03-2015, 01:31 PM | #4 |
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Re: GM 8.5 ten bolt crush sleeve
I would personally go with a solid spacer. After trying to crush a 8 3/4" sleeve, and torqued to 450 ft. lbs. , it pulled the threads out of the pinion nut, and still did not have enough preload.
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03-03-2015, 01:41 PM | #5 |
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Re: GM 8.5 ten bolt crush sleeve
Give the smart sleeve a go...around 150 ft lb and you are done.
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Rich Taylor I/SA - 321 |
03-03-2015, 05:37 PM | #6 |
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Re: GM 8.5 ten bolt crush sleeve
The issue I see with the smart sleeve is that it still crushes and will do so with less torque applied.
In a drag race application, with the shock and loads applied to the pinion during launch, especially with a heavy car, the solid spacer is the only way to go. |
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