Upgrade to Limited Slip?

[coonass]

Does anyone know if it is possible to add limited slip to my F-150 without having to replace the entire rear end? Any details would be appreciated. ------------------

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[Willy]

Coonass,
I had an original Ford LS installed in my truck by the dealer. You don't have to replace the rear-end to do it.
At that time Ford was the only ones manufacturing a LS system for the F150's. Aftermarket LS may be available now?

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2000 XLT supercab, 4x4 7700lb. package, 5.4L, 3.73 LS, 265 BFG All Terrains on Epic 16x8's, skids,rear sway-bar,Rhino brush gaurd,KC Daylighters,CD changer,MagnaCharger, Flowmaster,Superchip, Airaid, Replaced the JUNK Gibson Headers with Jet Black coated JBA's, Captains with Expy console, Island Blue

[Flats Man]

I just put an Auburn Pro in mine a week ago. I think it is around $370. retail and about $100-$150 to install. I will be running some "tests" on it this week. There are other after market LS's available to you. If you go with Auburn, get the Pro model.

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"The Beast" 98 White 4.6 Triton STX (It's not an STX anymore) Flairside,Class III hitch, Blue Cobra Stripes, Euro Lid by Astro, Bed Rug, Fiero Wing, Air Dam,Ground Force 2-4 Drop,Custom MB Phantom Wheels,clear corner lenses,monster battery terminals,MTX Sub Box with 2 10 inch Polk Subs, 4 Polk Speakers, MTX 102 Amp with Pioneer FH-P4400 CD Cassette Head Unit,Custom Programmed Super Chip,BBK 75mm TB, Pro M 80mm MAF,Pillar Pod w/ boost and trans temp,Jacobs DIS Ignition,Art Carr 2000-2400 stall transmission,4:10 gears with Auburn Pro Limited Slip,custom rear end housing, custom intake tube, Jet coated JBA stainless headers, custom Y pipe after the Cats, Magna Flow Muffler with Stainless Duals and of course fully Blown by Magnacharger!

http://www.zing.com/album/?id=4293450711

[This message has been edited by Flats Man (edited 02-26-2001).]

[coonass]

Is it installing a chip somewhere, or actually adding something to the inside od the differential? What is it that is installed? Oh yeah, and a web site if you have one where I can look at this stuff.

[This message has been edited by coonass (edited 02-26-2001).]

[max mitchell]

It it's a 5.4L/9.75" rear, you can install a Ford/OEM LS or a Auburn differential. If it's the 8.8" axle there are more differential choices plus the powertrax products. www.auburngear.com/402.htm for the 9.75" other areas of this website for 8.8". www.powertrax.com/ for the 8.8" non-tear down system.

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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.

[Talleywacker]

Flats Man...

How much HP is that truck of yours gettin?
must be up there huh

and where can you get the auburn ls for 370? cheapest i can find it is for 475 bucks

[This message has been edited by Talleywacker (edited 02-26-2001).]

[Flats Man]

I think Summitt has them for that price. I have had a lot of work done at this speed shop and they will match any price I can find on stuff. Keep looking and you should find the Pro for that price. I am putting 256.5 HP to the rear wheels or about 320 at the fly wheel. I am dealing with some wheel hope issues when I hit full power from a stand still. The Auburn greatly helped but I will be going to some kind of traction device such as Cal Trak etc.
Thanks for the help Max, those are good sources. I took detailed photos of the Auburn and the install and will post them when I get them developed!

[Willy]

Hey Flatsman,
Are you satisfied with the larger throttle-body and MAF in conjunction with the SC?
I've been concidering the upgrade.

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2000 XLT supercab, 4x4 7700lb. package, 5.4L, 3.73 LS, 265 BFG All Terrains on Epic 16x8's, skids,rear sway-bar,Rhino brush gaurd,KC Daylighters,CD changer,MagnaCharger, Flowmaster,Superchip, Airaid, Replaced the JUNK Gibson Headers with Jet Black coated JBA's, Captains with Expy console, Island Blue

[Flats Man]

Hi Willy, the best proof of what it will do for you is in my dyno runs which are shown on my Zing site. With the chip, my fuel/air was very rich, running around 10.8/1 and below. Without changing anything but the Pro M 80mm and BBK 75mm TB, my fuel/air went to a steady 11.7. Both dyno's are on the site. You will notice more kick to your truck and notice how steady the fuel curve is on the later dyno run compared to the stock MA and TB.

[This message has been edited by Flats Man (edited 02-28-2001).]

[Willy]

Thanks Flats!