Axle code?
Fleet Owner
Joined: Jul 2006
Posts: 20,376
Likes: 843
From: Mi'kma'ki
73? are you sure about that? what's the truck in question? model and year.
this one?
73 looks like F-super duty axle with 5.13's.
i found another post where one said: 73 Dana 6300 3.54 so id guess it was this one of course as its a f250 pickup.
so i guess this was before they put the sterling out back.interesting.
73 looks like F-super duty axle with 5.13's.
i found another post where one said: 73 Dana 6300 3.54 so id guess it was this one of course as its a f250 pickup.
so i guess this was before they put the sterling out back.interesting.
axel codes,manufacters,gvw and some sizes for 80-86.
Conventional:
13 Ford 3750 4.11(8.8)
14 Ford 3750 3.00(9")
16 Ford 3750 3.50(9")
17 Ford 3750 2.47(8.8)
18 Ford 3750 3.08(8.8)
19 Ford 3750 3.55(8.8)
22 Dana 5300 4.10
23 Dana 5300 3.54
24 Dana 5300 3.73
25 Ford 5300 4.10
26 Ford 4050 3.55
27 Ford 5300 3.73
29 Ford 5300 3.55
31 Dana 6250 3.07
32 Dana 6250 4.10
33 Dana 6250 3.54
35 Ford 6250 4.10
38 Ford 6250 3.08
39 Ford 6250 3.55
72 Dana 6300 4.10
73 Dana 6300 3.54
42 Dana 7400 4.10
43 Dana 7400 3.54
45 Ford 7400 4.10
49 Ford 7400 3.55
52 Dana 7400 4.10
53 Dana 7400 3.54
62 Dana 8200 4.10
63 Dana 8200 3.54
65 Ford 8200 4.10
69 Ford 8200 3.55
Limited Slip:
H3 Ford 3750 4.11
H4 " " 3.00
H6 " " 3.50
H8 " " 3.08
H9 " " 3.55
B2 Dana 5300 4.10
B3 " " 3.54
B4 " " 3.73
B5 Ford 5300 4.10
B7 " " 3.73
B6 " " 3.55
C2 Dana 6250 4.10
C3 " " 3.54
C5 Ford " 4.10
C9 " " 3.55
G2 Dana 6300 4.10
G3 " " 3.54
D2 " 7400 4.10
D3 " " 3.54
D5 Ford " 4.10
E2 Dana " 4.10
E5 Ford 8200 4.10
F9 " 8250 3.55
Conventional:
13 Ford 3750 4.11(8.8)
14 Ford 3750 3.00(9")
16 Ford 3750 3.50(9")
17 Ford 3750 2.47(8.8)
18 Ford 3750 3.08(8.8)
19 Ford 3750 3.55(8.8)
22 Dana 5300 4.10
23 Dana 5300 3.54
24 Dana 5300 3.73
25 Ford 5300 4.10
26 Ford 4050 3.55
27 Ford 5300 3.73
29 Ford 5300 3.55
31 Dana 6250 3.07
32 Dana 6250 4.10
33 Dana 6250 3.54
35 Ford 6250 4.10
38 Ford 6250 3.08
39 Ford 6250 3.55
72 Dana 6300 4.10
73 Dana 6300 3.54
42 Dana 7400 4.10
43 Dana 7400 3.54
45 Ford 7400 4.10
49 Ford 7400 3.55
52 Dana 7400 4.10
53 Dana 7400 3.54
62 Dana 8200 4.10
63 Dana 8200 3.54
65 Ford 8200 4.10
69 Ford 8200 3.55
Limited Slip:
H3 Ford 3750 4.11
H4 " " 3.00
H6 " " 3.50
H8 " " 3.08
H9 " " 3.55
B2 Dana 5300 4.10
B3 " " 3.54
B4 " " 3.73
B5 Ford 5300 4.10
B7 " " 3.73
B6 " " 3.55
C2 Dana 6250 4.10
C3 " " 3.54
C5 Ford " 4.10
C9 " " 3.55
G2 Dana 6300 4.10
G3 " " 3.54
D2 " 7400 4.10
D3 " " 3.54
D5 Ford " 4.10
E2 Dana " 4.10
E5 Ford 8200 4.10
F9 " 8250 3.55
Thread Starter
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Senior User
Joined: Jul 2011
Posts: 127
Likes: 0
From: Illinois
73? are you sure about that? what's the truck in question? model and year.
this one?
73 looks like F-super duty axle with 5.13's.
i found another post where one said: 73 Dana 6300 3.54 so id guess it was this one of course as its a f250 pickup.
so i guess this was before they put the sterling out back.interesting.
this one?
73 looks like F-super duty axle with 5.13's.
i found another post where one said: 73 Dana 6300 3.54 so id guess it was this one of course as its a f250 pickup.
so i guess this was before they put the sterling out back.interesting.
Posting Guru
Joined: Feb 2011
Posts: 2,216
Likes: 0
From: Princeton MN
The truck is turboed but thats it, the axle has never been changed. I'm not sure about the rpm, it has every single friggin option BUT a tach wtf? I do know it hits the governor at about 92mph!
you should have a tag on both front and rear axles with the ratio.
From what I can calculate with stock tires, it's 2131 revs per mile with 3.54's so at 60 it should be 2131rpm, to me it seems a little low on the revs but i just milk cows so my math my be off.
you should have a tag on both front and rear axles with the ratio.
From what I can calculate with stock tires, it's 2131 revs per mile with 3.54's so at 60 it should be 2131rpm, to me it seems a little low on the revs but i just milk cows so my math my be off.
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
Automotive Calculators offer to you by Ford Trucks Enthusiasts | www.ford-trucks.com Theres a calculator that will tell you exactly what rpm's you're turning
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Posting Guru
Joined: Feb 2011
Posts: 2,216
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From: Princeton MN
Automotive Calculators offer to you by Ford Trucks Enthusiasts | www.ford-trucks.com Theres a calculator that will tell you exactly what rpm's you're turning
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Axle code 73 is a DANA 70U 3.54:1 the "U" is a key part in that as it becomes an issue when buying parts and not a true DANA 70 but more of a hybrid axle with 60/70 parts and a smooth housing.
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