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Pinion seal question?

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Old 10-16-2008, 04:09 PM
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Default Pinion seal question?

i was wondering if anyone knew what size the pinion nut is on the stock ls1 rear. also i am changing that seal because it is leaking and i was going to top it off with gear oil and i know i need to use the synthetic oil but was wondering if i needed to add the posi additive to the oil if i an only topping it off? also what size are the driveshaft bolts?

i wanted to know because i have to take my car to my buddies house and i have the tools but i cant bring my whole tool box with lol!
Old 10-16-2008, 07:35 PM
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pinion nut is 1 1/4, driveshaft are 11mm...Just add gear oil back to it...better take a hose to get it in the housing..and a 3/8 ratchet and extension to get the plug out.
Old 10-16-2008, 10:22 PM
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alright thanks alot. i figured it was 1 1/4 or 1 1/8. diddnt think about the hose though. thanks




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