1988 Pickup Differential Fill Plug Swap - Low Profile 10mm Hex Drive Magnetic Plug
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1988 Pickup Differential Fill Plug Swap - Low Profile 10mm Hex Drive Magnetic Plug
Today I swapped out the fill plugs on my front and rear diffs for some low profile magnetic plugs. In hind sight, I should've ordered four and done the drains at the same time, but I'll just have to snag some more crush washers on my next order.
My front diff's fill nut was on pretty snug, but luckily all the corners were mostly intact. I don't think the previous owner ever did much in the way of maintenance. The rear was fubar; totally rounded off. I wound up taking a file to it and creating new corners, letting it soak over-nite with PB and then beating a 15/16 deep impact taper-less socket(a black $7 Kobalt socket I picked up at Lowes) onto it and then cranking it back and forth with a foot long cheater pipe.
http://i1380.photobucket.com/albums/...ps8410d848.jpg
Had to stick the socket in my vice and use a BFH and a screwdriver to knock the bolt out of the socket afterwards. The shiny bolt on the left is the rear bolt that I had to reshape with a file.
http://i1380.photobucket.com/albums/...7/IMAG1606.jpg
For anyone wanting to swap their fill and drain plugs on their diffs here are the Toyota part numbers:
Low Profile 10mm Hex Drive Magnetic Drain Plug: 90341-18021
Steel Crush Washer(gasket): 12157-10010
Also, I've read that the same plug will work for replacing the fill on the T-case, but that you should use an aluminum crush washer(gasket) so here's the part number for that:
Aluminum Crush Washer(gasket): 90430-18008
Instead of using our local Toyota stealership, that didn't have the plugs in stock anyway, I found this parts department online that has pretty damn low prices and charges a whopping $3 for USPS ground shipping. It only took two days for my parts to show up in Texas from Michigan.
http://www.toyotapart.com/
-Happy Wrenching
My front diff's fill nut was on pretty snug, but luckily all the corners were mostly intact. I don't think the previous owner ever did much in the way of maintenance. The rear was fubar; totally rounded off. I wound up taking a file to it and creating new corners, letting it soak over-nite with PB and then beating a 15/16 deep impact taper-less socket(a black $7 Kobalt socket I picked up at Lowes) onto it and then cranking it back and forth with a foot long cheater pipe.
http://i1380.photobucket.com/albums/...ps8410d848.jpg
Had to stick the socket in my vice and use a BFH and a screwdriver to knock the bolt out of the socket afterwards. The shiny bolt on the left is the rear bolt that I had to reshape with a file.
http://i1380.photobucket.com/albums/...7/IMAG1606.jpg
For anyone wanting to swap their fill and drain plugs on their diffs here are the Toyota part numbers:
Low Profile 10mm Hex Drive Magnetic Drain Plug: 90341-18021
Steel Crush Washer(gasket): 12157-10010
Also, I've read that the same plug will work for replacing the fill on the T-case, but that you should use an aluminum crush washer(gasket) so here's the part number for that:
Aluminum Crush Washer(gasket): 90430-18008
Instead of using our local Toyota stealership, that didn't have the plugs in stock anyway, I found this parts department online that has pretty damn low prices and charges a whopping $3 for USPS ground shipping. It only took two days for my parts to show up in Texas from Michigan.
http://www.toyotapart.com/
-Happy Wrenching
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This is one of those things I usually end up replacing on every Toyota that passes through my place.
With parts delivered over night I can understand dealers not stocking these parts.
I don`t like the Hex drive plugs I guess if you don`t drive in the dirt they are not bad .
With parts delivered over night I can understand dealers not stocking these parts.
I don`t like the Hex drive plugs I guess if you don`t drive in the dirt they are not bad .
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What does dirt do to the plugs? If these are going to turn into a nightmare down the road I'm open to an alternate suggestion. This was mainly just to get the rounded plugs off and the holes plugged.
#5
In the diff and trans on a 4wd app those plugs look like a good idea.
I wouldn't put a whole lot of stock in using those plugs in the engine for their magnetic abilities.
If your set on the belief that magnetic plugs work to help keep metal shavings out of the vital bits then use a Dimple oil plug http://magneticdrainplugs.co/ or a gold plug http://goldplug.com/
Yes they are more expensive but the magnets are a lot stronger.
Dimple oil plug
I wouldn't put a whole lot of stock in using those plugs in the engine for their magnetic abilities.
If your set on the belief that magnetic plugs work to help keep metal shavings out of the vital bits then use a Dimple oil plug http://magneticdrainplugs.co/ or a gold plug http://goldplug.com/
Yes they are more expensive but the magnets are a lot stronger.
Dimple oil plug
Last edited by Odin; 01-19-2015 at 11:57 AM.
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In the diff and trans on a 4wd app those plugs look like a good idea.
I wouldn't put a whole lot of stock in using those plugs in the engine for their magnetic abilities. Instead use a gold plug http://goldplug.com/ or a Dimple oil plug http://magneticdrainplugs.co/
Yes they are more expensive but the magnets are a lot stronger.
I wouldn't put a whole lot of stock in using those plugs in the engine for their magnetic abilities. Instead use a gold plug http://goldplug.com/ or a Dimple oil plug http://magneticdrainplugs.co/
Yes they are more expensive but the magnets are a lot stronger.
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As the OP is in Texas you should be fine !!
Here in the Great North with the great Liquid brine The Allen head plugs after just one winter have so much grit and rust Getting out one plug I ruined two 10mm allen impact sockets .
I have no problem once the old plugs are removed with the Hex head plugs well Never Seized of course.
Here in the Great North with the great Liquid brine The Allen head plugs after just one winter have so much grit and rust Getting out one plug I ruined two 10mm allen impact sockets .
I have no problem once the old plugs are removed with the Hex head plugs well Never Seized of course.
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As the OP is in Texas you should be fine !!
Here in the Great North with the great Liquid brine The Allen head plugs after just one winter have so much grit and rust Getting out one plug I ruined two 10mm allen impact sockets .
I have no problem once the old plugs are removed with the Hex head plugs well Never Seized of course.
Here in the Great North with the great Liquid brine The Allen head plugs after just one winter have so much grit and rust Getting out one plug I ruined two 10mm allen impact sockets .
I have no problem once the old plugs are removed with the Hex head plugs well Never Seized of course.
Last edited by tpaul87; 01-27-2015 at 11:51 AM.
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