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Old January 9th, 2012, 05:32 PM   #1
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Default Odd 8.8" locker question.

I've got a 1992 Tbird 8.8' IRS under my 66 C10 - and while it was fun for awhile, I'm tired of the onewheelpeel. I'm looking for a locker, but I can't determine an exact answer for my application. The side gears in my diff are beveled at the splines - this is to help compress the snap ring that holds the halfshaft in the carrier.

My question is this -since my halfshafts are held in place by the wheel hub / unit bearing, how important is it to have the clips on the inner shaft? Seems to me that it was more of a production line aid to hold the shafts in during assembly and not structural in any way (like how C-clips keep your axle from walking out).

Thoughts?
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Old January 9th, 2012, 07:32 PM   #2
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Do you have Disc brakes on top of that set-up? If they aren't holding the side gears in in any way, shape or form I can't see what it would hurt removing them.
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Old January 9th, 2012, 07:53 PM   #3
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i would be careful with removing the snap rings because when the suspension goes through its arc the axle shafts have to expand and contract and it could be enough to pull the shafts from the diff. the cv shafts have a tripod joint to cope with this normally but it's kind of like having a slip yoke transfer case and a slip style driveshaft.
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Old January 9th, 2012, 07:55 PM   #4
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Would the carrier from a mark VIII fit? Majority of those were Trac Locks and IRS.
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Old January 10th, 2012, 06:04 AM   #5
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Heck yeah - one of those would fit - and I'd like the aluminum lowers off of them too.

I was hoping to put a lunchbox or maybe even a selectable in there - though I guess I could always wedge an extra disc in a TRaction Loc...
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Old January 10th, 2012, 06:05 AM   #6
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Quote:
Originally Posted by Sandals View Post
Do you have Disc brakes on top of that set-up? If they aren't holding the side gears in in any way, shape or form I can't see what it would hurt removing them.
That's the big question.
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Old January 10th, 2012, 08:07 AM   #7
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http://www.ringpinion.com/b2c/Produc...rand=PowerTrax

Would this work? Randy's says it fits the irs.
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Old January 10th, 2012, 10:14 AM   #8
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Quote:
Originally Posted by Kodiak450r View Post
i would be careful with removing the snap rings because when the suspension goes through its arc the axle shafts have to expand and contract and it could be enough to pull the shafts from the diff. the cv shafts have a tripod joint to cope with this normally but it's kind of like having a slip yoke transfer case and a slip style driveshaft.
^^ bingo. That said I built a Merkur {IRS} a while back for autocrossing and modified a Auburn posi for a GM 10 bolt it the shitty 7" rear diff and couldnt use the clips on the ends of my inner shafts. I made sure the surface on my inners had enough seal surface contact through full suspension travel and everything worked out fine. Inners had plenty of spline engagment to the spiders also.
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