decode the diff tag
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
I don't think a pic of inside will tell you anything other than for the LS. To get to the bottom of it I would just spin a wheel and see how far the yoke goes around and take it out on a gravel road to test for a LS. A 4:30 LS is pretty rare for a stock Ex.
Christina is right ; all Ex's had the 10.5 diff.
From Wiki;
The 5.4 L Triton V8 was rated at 255 hp (190 kW; 259 PS) and 350 lb·ft (475 N·m). The 6.8 L Triton V10 produced 310 hp (231 kW; 314 PS) and 425 lb·ft (576 N·m). The 6.0 L Powerstroke Diesel was rated at 350 hp (261 kW; 355 PS) and 560 lb·ft (759 N·m). In mid 2004, due to multiple 6.0 engines having injector failures, Ford down-tuned all 6.0 engines to 325 hp (242 kW; 330 PS). The rear axle for all Excursions was a Sterling 10.5 axle. The four wheel drive models were equipped with a NV273 transfer case and Dana 50 front axle.
Christina is right ; all Ex's had the 10.5 diff.
From Wiki;
The 5.4 L Triton V8 was rated at 255 hp (190 kW; 259 PS) and 350 lb·ft (475 N·m). The 6.8 L Triton V10 produced 310 hp (231 kW; 314 PS) and 425 lb·ft (576 N·m). The 6.0 L Powerstroke Diesel was rated at 350 hp (261 kW; 355 PS) and 560 lb·ft (759 N·m). In mid 2004, due to multiple 6.0 engines having injector failures, Ford down-tuned all 6.0 engines to 325 hp (242 kW; 330 PS). The rear axle for all Excursions was a Sterling 10.5 axle. The four wheel drive models were equipped with a NV273 transfer case and Dana 50 front axle.
Postmaster
Joined: Aug 2012
Posts: 2,737
Likes: 23
From: Westfield, Indiana
I don't think a pic of inside will tell you anything other than for the LS. To get to the bottom of it I would just spin a wheel and see how far the yoke goes around and take it out on a gravel road to test for a LS. A 4:30 LS is pretty rare for a stock Ex.
Christina is right ; all Ex's had the 10.5 diff.
From Wiki;
The 5.4 L Triton V8 was rated at 255 hp (190 kW; 259 PS) and 350 lb·ft (475 N·m). The 6.8 L Triton V10 produced 310 hp (231 kW; 314 PS) and 425 lb·ft (576 N·m). The 6.0 L Powerstroke Diesel was rated at 350 hp (261 kW; 355 PS) and 560 lb·ft (759 N·m). In mid 2004, due to multiple 6.0 engines having injector failures, Ford down-tuned all 6.0 engines to 325 hp (242 kW; 330 PS). The rear axle for all Excursions was a Sterling 10.5 axle. The four wheel drive models were equipped with a NV273 transfer case and Dana 50 front axle.
Christina is right ; all Ex's had the 10.5 diff.
From Wiki;
The 5.4 L Triton V8 was rated at 255 hp (190 kW; 259 PS) and 350 lb·ft (475 N·m). The 6.8 L Triton V10 produced 310 hp (231 kW; 314 PS) and 425 lb·ft (576 N·m). The 6.0 L Powerstroke Diesel was rated at 350 hp (261 kW; 355 PS) and 560 lb·ft (759 N·m). In mid 2004, due to multiple 6.0 engines having injector failures, Ford down-tuned all 6.0 engines to 325 hp (242 kW; 330 PS). The rear axle for all Excursions was a Sterling 10.5 axle. The four wheel drive models were equipped with a NV273 transfer case and Dana 50 front axle.
Even if someone put a 10.25 in your truck previously, Ford doesn't list S415B for any axle other than a 10.50. It's a good mystery.
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Factories use a lot of #'s for a lot of things and I never take them too seriously, they can be the time of day it was made or anything. If he just marks a tire, spins it one time, and watches to see if the marked yoke spins 4 1/3 times it will be a 4:30 but I have a feeling it won't even reach 4 spins. Also, he can count the teeth on the pinion and divide them into the ring teeth.
Postmaster
Joined: Aug 2012
Posts: 2,737
Likes: 23
From: Westfield, Indiana
The tag decodes like this
S - Sterling - Ford Axle made in Sterling, MI
415B - Model which is listed as 4.30 LS 10.5 put in EX by Ford 2000-2005 also found in F250 and F350's not sure on the years on those though.
"4"L30 - 4.30 Ratio (Can't see the #4 but I'm guessing under the bolt you will find a #4)
10 2 - means 10.25 (again makes no sense)
0B09 Date
0 - year 2000
B - month 2nd month February
09 - day the 9th
S - Sterling - Ford Axle made in Sterling, MI
415B - Model which is listed as 4.30 LS 10.5 put in EX by Ford 2000-2005 also found in F250 and F350's not sure on the years on those though.
"4"L30 - 4.30 Ratio (Can't see the #4 but I'm guessing under the bolt you will find a #4)
10 2 - means 10.25 (again makes no sense)
0B09 Date
0 - year 2000
B - month 2nd month February
09 - day the 9th
Thread Starter
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Senior User
Joined: Oct 2012
Posts: 470
Likes: 1
From: Havillah, WA
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Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
By the thickness of that ring gear it is probably a low ratio and I think it is a 10.25 because it only has a total of 4 spider gears and the 10.5 has a smaller window opening to see the spiders.........sure is dirty looking.
The 10.25 parts are a lot cheaper and easier to come by but have a smaller pinion gear shaft which had some wobbling problems.
The 10.25 parts are a lot cheaper and easier to come by but have a smaller pinion gear shaft which had some wobbling problems.
Postmaster
Joined: Aug 2012
Posts: 2,737
Likes: 23
From: Westfield, Indiana
Ooooo, that looks like mud.
How long have you owned this truck? My axle had serious water intrusion, but yours looks much thicker than mine. See pic below. I have always heard, light means water, too dark (almost black) means metal. So at least it's not black. But that seems really thick. Mine had some damage on the carrier (2nd pic) but that was taken before I cleaned anything off, just drained it and you can see the fluid isn't sticking to it like yours.
How long have you owned this truck? My axle had serious water intrusion, but yours looks much thicker than mine. See pic below. I have always heard, light means water, too dark (almost black) means metal. So at least it's not black. But that seems really thick. Mine had some damage on the carrier (2nd pic) but that was taken before I cleaned anything off, just drained it and you can see the fluid isn't sticking to it like yours.
Thread Starter
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Senior User
Joined: Oct 2012
Posts: 470
Likes: 1
From: Havillah, WA
Factories use a lot of #'s for a lot of things and I never take them too seriously, they can be the time of day it was made or anything. If he just marks a tire, spins it one time, and watches to see if the marked yoke spins 4 1/3 times it will be a 4:30 but I have a feeling it won't even reach 4 spins. Also, he can count the teeth on the pinion and divide them into the ring teeth.
Thread Starter
|
Senior User
Joined: Oct 2012
Posts: 470
Likes: 1
From: Havillah, WA
Ooooo, that looks like mud.
How long have you owned this truck? My axle had serious water intrusion, but yours looks much thicker than mine. See pic below. I have always heard, light means water, too dark (almost black) means metal. So at least it's not black. But that seems really thick. Mine had some damage on the carrier (2nd pic) but that was taken before I cleaned anything off, just drained it and you can see the fluid isn't sticking to it like yours.
How long have you owned this truck? My axle had serious water intrusion, but yours looks much thicker than mine. See pic below. I have always heard, light means water, too dark (almost black) means metal. So at least it's not black. But that seems really thick. Mine had some damage on the carrier (2nd pic) but that was taken before I cleaned anything off, just drained it and you can see the fluid isn't sticking to it like yours.
I got the tag off and there was a "4" before the " L 30" on the second line... oh and i've had the truck for a full year now. Probably put about 3000 miles on it or so total. I just looked and it's got 178K miles (i thought it was over 180K).
Postmaster
Joined: Aug 2012
Posts: 2,737
Likes: 23
From: Westfield, Indiana
Yeah this stuff is thick, doesn't help it's cold out, probably around 35-40°F. and i only drove it maybe 5 miles around before opening it up. But still it's very thick. Brown, looks just like thin mud. I figure i'll just get 2-3 cans of brake cleaner and start spraying and turning the wheels till it's as clean as i can get it, the inside is gonna be soaked in brake cleaner, i hope that's not an issue... So not a LS then? does that mean i can still use the synthetic oil but just leave out the tube of additive?
I got the tag off and there was a "4" before the " L 30" on the second line...
I got the tag off and there was a "4" before the " L 30" on the second line...
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
I'm guessing i'm doing something wrong. I lifted a rear tire off the ground (TC in 2WD,Tranny in N) then spun the rear tire one revolution while my wife watched the yoke, she said it turned 2-1/4 times around. I tried to get both tires off the ground but there was no easy way to do it, don't know if that would make a difference.... The bottom of my fender flares are at my shoulders and the tires are still barely touching the ground.....
Post Fiend
Joined: Mar 2009
Posts: 11,798
Likes: 14
From: Mt. Shasta California
Yeah this stuff is thick, doesn't help it's cold out, probably around 35-40°F. and i only drove it maybe 5 miles around before opening it up. But still it's very thick. Brown, looks just like thin mud. I figure i'll just get 2-3 cans of brake cleaner and start spraying and turning the wheels till it's as clean as i can get it, the inside is gonna be soaked in brake cleaner, i hope that's not an issue... So not a LS then? does that mean i can still use the synthetic oil but just leave out the tube of additive?
I got the tag off and there was a "4" before the " L 30" on the second line... oh and i've had the truck for a full year now. Probably put about 3000 miles on it or so total. I just looked and it's got 178K miles (i thought it was over 180K).
I got the tag off and there was a "4" before the " L 30" on the second line... oh and i've had the truck for a full year now. Probably put about 3000 miles on it or so total. I just looked and it's got 178K miles (i thought it was over 180K).
