97 F150 rear end code question

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Jul 22, 2008 | 12:32 PM

bud_neumann

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97 F150 rear end code question

i've gotta 97 F150 4x4 5spd 4.2L engine. i need to change out the rear axle and i would like to know if the one out of this other truck will work. the other truck is a 97 F150 4x4 automatic 4.6L engine. the code on my rear end is this:

S862B
3 55 88 6619

and the code on the other trucks rear end is this:

S862B
3 55 88 7E05

can someone tell me if these are interchangeable and what the numbers on these tags actually mean. and what these gear ratios are.

thanks

Jul 22, 2008 | 12:40 PM

KingRanchMan02

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Joined: Oct 2005

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From: Louisville, Kentucky

Well it appears that the two axles are identical. Both are 8.8" axles with 3.55 gears and no limited slip in either one. Good luck on swapping it out!

Jul 22, 2008 | 08:13 PM

ncranchero

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Joined: May 2003

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From: E.Lincoln County, NC

EDIT:
I didn't see that you were changing the complete axle until I read your post again........... They're the same.

S862B is the BOM (Bill of Materials) number, used to identify the specific axle.
3 55 is the ratio ( a limited slip version would be 3L55).
88 means it's an 8.8 axle (ring gear size)
6619/7E05 Are date codes.

Here's axle shaft info in case you ever need it.

Right side
Hollander#2192R, Ford# F75Z4234NA, Application 97-99 F150 4X2/4X4,5 Lug, 31 Spline, 8.8 " Ring Gear, 31-3/4" Length

Left Side
Hollander#2193L, Ford# F75Z4234NB, Application 97-99 F150 4X2/4X4,5 Lug, 31 Spline, 8.8 " Ring Gear, 33-3/8" Length