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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

81 f150 axle code

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Old Jun 8, 2005 | 11:25 PM
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dpc
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From: Granite Falls, WA
81 f150 axle code

the door plate reads H4. can somebody tell me what this means?

thanks
 
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Old Jun 9, 2005 | 06:55 AM
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It's an axel code for Limited Slip: H4 gears 3.00
 
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Old Jun 9, 2005 | 04:05 PM
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what ratios were available for these trucks. 3.00 seems middle of the road and an odd #. also does the limited slip need anything like specific recommended fluids or such?

Thanks
 
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Old Jun 9, 2005 | 09:02 PM
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I have a break down of door axel codes,manufacters,gvw and some sizes for 80-86. I'll have to search my disc's to find out if theres any differnt fluid specs.Hope this helps.
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
 
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