• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

open, limited, or posi?


Stromnoodle

New Member
Joined
Jan 3, 2015
Messages
21
Reaction score
0
Points
0
Vehicle Year
1993
Make / Model
Ford
Engine Size
v6 4.0
Transmission
Manual
Whats yalls choice of the matter?

My truck is runnin an 8.8 3.73 open. not sure what i should do. the plan is to build her into a racer, but as of right now shes just the daily.
 


RonD

Official TRS AI
TRS Technical Advisor
Joined
Jun 2, 2012
Messages
25,363
Reaction score
8,374
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
Open means the easiest wheel to spin gets the power, which is why they get stuck so easy.

Posi(positraction) is what GM calls theirs, L/S(limited Slip) is what Ford calls theirs, they are pretty much the same thing, if one wheels starts to spin faster than the other the "clutch" will apply some of that spin to the other wheel, giving it some power, BUT if one wheel looses traction completely, i.e. raised off the ground, it will act almost like an Open differential, but for ice, snow, dirt and gravel it is way better than Open.
Because this type of set up is not an instant engagement to match wheel/axle spin, going around corners is not an issue.

Lockers, lock both axles to turn with the drive line, very hard to go around a corner this way, lol, but both wheels get equal power.

What will you be racing?
On road, off road
Straight line, track, ect............
 

97RangerXLT

Forum Staff Member
TRS Forum Moderator
Article Contributor
TRS 20th Anniversary
TRS Event Participant
TRS 25th Anniversary
Joined
Sep 18, 2007
Messages
6,822
Reaction score
4,013
Points
113
Location
Fishers, IN
Vehicle Year
1997
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
2"
Tire Size
31"
I have the 3:73 ls. No complaints. What kind of racing? Circle burning or drag?
 

Stromnoodle

New Member
Joined
Jan 3, 2015
Messages
21
Reaction score
0
Points
0
Vehicle Year
1993
Make / Model
Ford
Engine Size
v6 4.0
Transmission
Manual
forsure man, i think what i was meaning to call posi was lockers.

I'd love to get into baja 1000 or somthing along those lines. I'd prefer to run my truck as a class 7 but that means having to find a sohc 4.0 then slapping a supercharger on that, unless anyone has any idea on how to boost hp from the stock ohv. whilst keeping it street legal or smog passable lol.

So i guess id like like to race sand or even short track wouldnt bother me
 

swynx

Active Member
Joined
Mar 26, 2008
Messages
2,401
Reaction score
9
Points
38
Age
31
Location
lewiston idaho
Vehicle Year
1994
Make / Model
Mazda
Engine Size
4.0
Transmission
Manual
I vote a packed limited slip.
 

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,614
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Posi(positraction) is what GM calls theirs, L/S(limited Slip) is what Ford calls theirs,
No, Limited Slip is the generic term, like gelatin, or tissue. Positraction is GM's proprietary term, like Jello or Kleenex. Ford's proprietary name is Trac Loc.
 

bobbywalter

TRS Technical Staff
TRS Event Staff
V8 Engine Swap
TRS Technical Advisor
TRS Banner 2012-2015
TRS 20th Anniversary
Ugly Truck of Month
TRS Event Participant
Joined
Aug 9, 2007
Messages
23,470
Reaction score
4,668
Points
113
Location
woodhaven mi
Vehicle Year
1988
Make / Model
FORD mostly
Engine Type
V8
Engine Size
BIGGER
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
sawzall?
Tire Size
33-44
My credo
it is easier to fix and understand than "her"
forsure man, i think what i was meaning to call posi was lockers.

I'd love to get into baja 1000 or somthing along those lines. I'd prefer to run my truck as a class 7 but that means having to find a sohc 4.0 then slapping a supercharger on that, unless anyone has any idea on how to boost hp from the stock ohv. whilst keeping it street legal or smog passable lol.

So i guess id like like to race sand or even short track wouldnt bother me


for this....spool in rear, most splines possible with whatever axle you have.

most predictable with power and those conditions at speed.

stroker 4.0 or a turbo will be a good way to up the power on a ohv. i been working on the sohc lately. no thanks. its like all of the other retarded cammer bullshit. hard to work on, and to much complication and money to make big power. but they are awesome for stock configurations and intended life cycle.
 

Carlos Murphy

New Member
Joined
Aug 7, 2007
Messages
638
Reaction score
5
Points
0
Location
Gardnerville, Nv.
Vehicle Year
1988
Make / Model
Ford
Transmission
Automatic
I have a Richmond Loc-rite locker in my 88, 2.9 Ranger.
No air lines, compressors, switches or wires, its automatic, always there.
Unload it, begin a turn and it disengages, straighten out, load it and it re-engages, simple, like me.....

If I were on a budget, for mostly off road driving, I would just weld the spider gears.
 

Kirby N.

Active Member
Truck of Month
Joined
Jul 6, 2008
Messages
259
Reaction score
78
Points
28
Location
Monument, CO
Vehicle Year
1991
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
8.8 trac loc carriers are notoriously weak. I destroyed one and everything in my Rear end one time. Spoken as someone who has ran lots of different differentials - lockright, Detroit, electrac, traclok, arb, Lincoln, etc and broke many of them- you get what you pay for. If you can swing a arb, go for that. If not compromise with what you can afford. Don't be surprised when your compromise isn't the best or isn't the most durable. On my current build, I refuse to compromise. I am currently running open diffs until I can afford arbs.




Sent from my iPhone using Tapatalk
 
Last edited:

MastuhWaffles

11/2014 OTOTM Winner
OTOTM Winner
TRS Banner 2012-2015
Joined
Mar 14, 2013
Messages
1,846
Reaction score
69
Points
48
Location
Texas
Vehicle Year
2007
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0L SOHC
Transmission
Automatic
2WD / 4WD
2WD
Tire Size
31
My credo
I need more sleep.
Well I have Fords Traction Lock or whatever its called, and it seems to work pretty good. I was playing around in the ice and snow today and it would lock up and keep the truck going straight.
 

ridgerunner

Member
Joined
Feb 13, 2013
Messages
445
Reaction score
3
Points
18
Location
Tioga County, PA
Vehicle Year
1994
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
I just had my No-Slip locker put in the rear a 2 weeks ago and love it. We have tons of snow here in PA and I don't put it in 4X4 near as much now. I've heard that lockers are bad in snow but after having one I believe whomever said that is full of chit. I've run a mini spool in my 90' F150 woods truck for a yr or so and it is cheap (I paid $50) to buy new at about $100-150. The No-slip locker helps me steer the truck with the back end. Before the locker the front end would wash out (understeer) horribly in 4X4 in the snow.
 

Mac

Well-Known Member
Supporting Member
V8 Engine Swap
Joined
Aug 9, 2007
Messages
5,103
Reaction score
183
Points
63
Age
77
Location
C. Wisconsin
Vehicle Year
2003
2000
199
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
Another one that uses the Richmond "No-Slip" and very happy, used on DD in the snowy Winter.
Dave
 

Sponsored Ad


Sponsored Ad

Staff online

Today's birthdays

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


Mudtruggy
May Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top