Differential swap
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
I have the lsd in my dually and love it. It was from the factory and has 160000 on it. My last truck has a locker and I didn't care for it at all. On the pavement in snow, ice or wet surface it tends to pull out around corners or hard stops on dry surface can take the truck side to side.
Senior User
Joined: Oct 2006
Posts: 320
Likes: 0
From: Salem, OR
My $.02
Locker: If you encounter snow or ice i would not recomend it. If one tire looses traction the other side is not far behind, they will both spin out and you are more likely to loose controll. With the extra lenght of your CC LB you will not be as prone to it comming around on you, if you decide to go that route. Also there are deffinate driving characteristic that you have to get used to. Personaly i think they are more for off-road use and not great for DD.
Limited Slip: Not as good for traction in the mud, rocks, and off camber situations, but hey in a dulley you probably wont see too much of that. You also may have to run a friction modifier, and may have clutch packs that wear out. Or like "a-rod" and his true-trac that is geared you dont have those two issues, and i would have gone that route if i went new, but i got used axels ones when mine went bad.
Locker: If you encounter snow or ice i would not recomend it. If one tire looses traction the other side is not far behind, they will both spin out and you are more likely to loose controll. With the extra lenght of your CC LB you will not be as prone to it comming around on you, if you decide to go that route. Also there are deffinate driving characteristic that you have to get used to. Personaly i think they are more for off-road use and not great for DD.
Limited Slip: Not as good for traction in the mud, rocks, and off camber situations, but hey in a dulley you probably wont see too much of that. You also may have to run a friction modifier, and may have clutch packs that wear out. Or like "a-rod" and his true-trac that is geared you dont have those two issues, and i would have gone that route if i went new, but i got used axels ones when mine went bad.
Thread Starter
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Senior User
Joined: Oct 2008
Posts: 466
Likes: 0
From: Ontario, CAN
Update.....I will be installing an Eaton Tru-Trac next week. I was going to go with an Auburn but, I have a Dana 80 and they don't make one to fit.
Also, on a related note, I do have 3.73 gears in the factory rear diff. of my '01 F350 dually.
I know a lot of you guys say it ain't so, but I bought this truck new and I have always felt that it was high geared. The "606614-4" tag on the diff cover confirms it.
Thanks for the input and all your help.
Also, on a related note, I do have 3.73 gears in the factory rear diff. of my '01 F350 dually.
I know a lot of you guys say it ain't so, but I bought this truck new and I have always felt that it was high geared. The "606614-4" tag on the diff cover confirms it.
Thanks for the input and all your help.
Cargo Master
Joined: Jun 2010
Posts: 2,771
Likes: 3
From: Louisiana
Update.....I will be installing an Eaton Tru-Trac next week. I was going to go with an Auburn but, I have a Dana 80 and they don't make one to fit.
Also, on a related note, I do have 3.73 gears in the factory rear diff. of my '01 F350 dually.
I know a lot of you guys say it ain't so, but I bought this truck new and I have always felt that it was high geared. The "606614-4" tag on the diff cover confirms it.
Thanks for the input and all your help.
Also, on a related note, I do have 3.73 gears in the factory rear diff. of my '01 F350 dually.
I know a lot of you guys say it ain't so, but I bought this truck new and I have always felt that it was high geared. The "606614-4" tag on the diff cover confirms it.
Thanks for the input and all your help.
Thread Starter
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Senior User
Joined: Oct 2008
Posts: 466
Likes: 0
From: Ontario, CAN
Oh yes, it's open. That's the big problem with the damn thing. It'll get stuck in a cow track.
I'm hoping this Tru-Trac will solve the problem.
It's about time I put a flatbed on this one and leave it at the farm. I could sell my inlaws kidneys and buy me a new 6.7
I'm hoping this Tru-Trac will solve the problem.
It's about time I put a flatbed on this one and leave it at the farm. I could sell my inlaws kidneys and buy me a new 6.7
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
It was just the LSD that wasn't installed with the 3:73 gears. In 99 I don't even think it was available dually 3:73.I wanted the LSD and dually and the only way they could order it was with 4:10 diff. Good luck on the new rear end, Be carefull in the snow on highway till you see how it acts. I have had no problems with mine I think alot has to do with the dual wheel set up.
Thread Starter
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Senior User
Joined: Oct 2008
Posts: 466
Likes: 0
From: Ontario, CAN
Thanks for the input guys. I've had LSD's before, just not in a dually. It does present a new equation when driving on an icy or snowy road but, I think it will be worth it in the long run. Next truck will be a SRW and it won't be such an issue.
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Posting Guru
Joined: Jan 2006
Posts: 1,605
Likes: 1
From: Elkhorn, WI
It may be to late but have you checked into selectable lockers? Open for normal driving and you can lock it with the push of a button. Best of both worlds. With arb air lockers you will also have an on board air compressor. If not the true trac is the best non selectable diff out there in my opinion. My buddy just put one in his dmax and loves it
Thread Starter
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Senior User
Joined: Oct 2008
Posts: 466
Likes: 0
From: Ontario, CAN
It may be to late but have you checked into selectable lockers? Open for normal driving and you can lock it with the push of a button. Best of both worlds. With arb air lockers you will also have an on board air compressor. If not the true trac is the best non selectable diff out there in my opinion. My buddy just put one in his dmax and loves it
Thanks
Senior User
Joined: Jan 2008
Posts: 339
Likes: 2
From: Upstate NY
another DRW here, mines 3:73 open diff as well. It really pisses me off that i gotta have the hubs locked and in 4x4 to even get out of my driveway....
anyone have entire rear axle laying around with the 3:73lsd?
anyone have entire rear axle laying around with the 3:73lsd?
Cargo Master
Joined: Jun 2010
Posts: 2,771
Likes: 3
From: Louisiana
Not sure where you live but down here in la we need all the flotation we can get! I have to watch were I drive around my house not to bury it to the axle!
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
Duals don't really offer good flotation.When I was in the sand and mud in Fla I converted my work trucks to wide singles to stand on top of it.Duals were really worthless
In some instances duals with chains pull pretty good but chains are my last resort
this is from decades of experience
In some instances duals with chains pull pretty good but chains are my last resort
this is from decades of experience