Here are some codes for later readers-
1=open,H=LS(first character)
2=2.73(second character)
8=3.08
7=3.31
9=3.55
6=3.73
5=4.10

 

good info!
im gonna hafto go see what i got!

------------------
97 F150 Longbed V8 4.6
K&N air filter
K&N FIPK tech MOD & removed elbow silencer
Hyper white xenon bulbs
Bedliner and raven shell
6 disc cd changer
Oil & filter used

Gasoline used

My Truck

 

All recent ford axle codes plus other useful info is available at fordtrucks.com in a tech article. Check it out at

http://www.ford-trucks.com/articles/axlechart.html


------------------
F-150 XLT Super Cab Long Bed, 4x4, 4.6L, Auto, 3.55 LS

 

Hey guys,

I need some help here. I have code 19 which means 'open' 3.55. What is the advantage of moving to 3.73 or 4.10 gears? Should I consider Limited Slip? I plan on using my truck to tow (truck pulls mostly) etc, but M-F i do a lot of highway driving.

How expensive is a gear change and is it worth it?

Any information is helpful because I don't know squat about this stuff.

Thanks,

Wingnut

------------------
2001 Bright Red Supercrew
4X4
5.4 V8

Mods:
Superchip
BFGoodrich TA KO 285/75/16
Airforce One intake kit
Exhaust: Hooker AeroChamber Muffler, SI/DO
SurePull Class III Hitch
Rhino Liner (Planned)
Catch-All Floor Mats (Planned)

Go Buckeyes!
&
Go Bluejackets!

 

I've decided (or the wife has) to keep my
p/u F150... which means some long discussed
'concepts' will become reality. I have
an open axle (non LS) and wonder IF there is
a way to 'change' my current setup to 'just'
include LS?
Don't want a higher gear (3.55)... are there
lockers or some other partial alterations
that would work? Thanks.

 

Doc- To get the LS you must change your differential; you can use any gears you like including those 3.55s. To do this requires the rear-end to be torn down. There are several types for the 8.8"; OEM or Auburn for the 9.75". When wanting the same gears, there is also a system that requires minimal tear down (this is not a entire differential). www.powertrax.com

------------------
2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.

 

Yeah, hey went over there and looked around.
Sounds like an easy swap out and in? But
I am not sure that "I'd" try it myself...
Anyone using the 'non-locker' limited
slip? Appears to be the way to go for
better traction and I live on an amazing
hill, could use it.
Thanks very much for the info.

 

All right everyone, I need some advice in a hurry. My rear differential blew a seal about 3000 miles ago, and as you can imagine the gears have literally torn themselves to shreds. When I took out the oil cap to the differential, metal shavings were just all over the place. I am assuming that the entire rear is shot, including the spider gears, so I will need a whole new rear end. I have a 4.6 4x4 with limited slip. My tires are 285/75/16, and I would like to pep up the truck. Please advise on best combo that I could have Ford put in for me.

 

i ran outside to check mine, and found an axle code of 26..

i believe that i have 3.73 non-LS, but this code is not in the link above at the http://www.ford-trucks.com/articles/axlechart.html website..

i wonder why?

------------------
'99 Ford F-150 Lariat Supercab 4x4 ORP
5.4L Triton V-8
Deep Wedgewood Blue



MODS TO COME:
K&N FIPK
Gibson Swept Side Exhaust
A.R.E. LSII Hard Tonneau Cover

 

Correct 26=open,3.73

 

That's the right one B6=LS,3.73

 

Somehow I knew that Max "Drivetrain" Mitchell was going to be able to answer my question.
It never stops amazing me the amount of expertise I get on this board...Thanks Max.

...but you're not getting my Bud...

------------------
'99 Ford F-150 Lariat 4WD, SCab, 5.4L
* Superchip
* K&N FIPK GEN II
'99 Chrysler 300M, 3.5L
* Borla Cat-Bak
* K&N Filtercharger
www.atlantagamerz.com
www.f150online.com
www.300mclub.org

 

I'm still just a little confused (c'mon, be gentle, I used to live close to Texas). Where exactly am I finding this "code" for the rear end (LS v. Open).
On my drivers side door, the tag give useful information (wgt, tp, vin, etc...) and the only reference was "axle" and a alphanumeric code under it (B6).
I cannot find any reference to this in any post, site, ect...
Is there somewhere I should look on the axle itself? What I am looking for is the ratio and whether it is open or LS.
Thx...

...oh, and for you millions of Texans, I am so kidding here.

------------------
'99 Ford F-150 Lariat 4WD, SCab, 5.4L
* Superchip
* K&N FIPK GEN II
'99 Chrysler 300M, 3.5L
* Borla Cat-Bak
* K&N Filtercharger
www.atlantagamerz.com
www.f150online.com
www.300mclub.org

 

You're more than welcome. I'm not a drivetrain expert; some here are. It's just a simple reference many have posted here. Happy Truckin'