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Old 10-01-2022, 07:49 PM #1
RidingDirty RidingDirty is offline
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Did I order correct Non-ADD shaft bolts? (ADD delete)

Hey I am in the process of doing the manual hub conversion and ADD delete (all parts are from 1995 Tacoma). I took the original ADD shaft off the front differential and am installing the non-ADD shaft (from the Tacoma). So I ordered (4) new bolts from Toyota (for a Tacoma) to use since I didn't want to used my original rusted torx bolts (for a 4runner). The original 4runner bolts are torx and 20mm long (M12x1.25), but the Tacoma bolts I received are hex flange bolts which are 25mm long (M12x1.25). I did not remove my parts from the Tacoma, so I don't know what type of fasteners were originally used with the Tacoma. So can anyone tell me if I ordered the correct bolts?

On the Toyota parts online diagram for the front axle, the diagram part number is 41320B (BOLT FOR FRONT DIFFERENTIAL TUBE), but this corresponds to two different parts numbers (#90105-12278 and 90105-12292). I ordered part #90105-12278 which says it fits only Tacoma (which is why I ordered it). Then part #90105-12292 says it fits 4runner, Landcruiser and Tacoma (which is why I didn't order it). Can anyone confirm that this is correct?

FRONT AXLE HOUSING & DIFFERENTIAL. 1995 Toyota Tacoma REGULAR CAB DLX 2.7L M/T 4WD | Toyota

1995 Toyota Tacoma REGULAR CAB DLX 2.7L M/T 4WD Bolt (for front differential tube). Suspension, brakes, axle - 9010512278 - Genuine Toyota Part

1995 Toyota Tacoma REGULAR CAB DLX 2.7L M/T 4WD Bolt (for front differential tube). Suspension, brakes, axle - 9010512292 - Genuine Toyota Part

Also the bolts I received are marked with a "10" on the bolt head. I know that this is some Toyota numbering system. But is this Toyota "10" bolt equivalent to Grade 8 or Class 10.9? I am asking because the bolts on the differential housing are marked with an "11" and I figured all the front diff/axle bolts would be the same grade/class. So this is adding more confusion for me. If these Toyota bolts I bought aren't correct, the link below is what I was going to order instead.

JIS Flange Bolt 10.9 Extra Fine M12X1.25 / 17mm Wrench - BelMetric
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Did I order correct Non-ADD shaft bolts? (ADD delete)-dscn4147-jpg  Did I order correct Non-ADD shaft bolts? (ADD delete)-dscn4148-jpg 
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Old 10-03-2022, 12:16 PM #2
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Can't confirm any specifics, but you can check out this reference chart for Toyota bolt markings:



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Old 10-03-2022, 12:34 PM #3
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The main difference is that on one, the thread goes all the way to the bolt head. On the other it doesn't. I don't know if this is an issue or not as I've never done a manual hub conversion but it might be if it sits flush with a threaded hole. That last 3-4mm will seize up and not tighten down all the way. But like I said I don't know if it does need to be threaded or not so it may be best to test fit.

I would not worry about the bolt class all that much. Toyota overbuilds and over engineers their parts on purpose so there is a wide margin of error before anything snaps. If it were my rig, I'd use those grade bolts without a second thought. Other than a valve cover bolt (which was my fault), I have never had any bolt ever snap off.
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Old 10-06-2022, 02:44 PM #4
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I'm 99.9% sure that those bolts you got will work just fine.
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