Where can I find a cheap (price) Traction-Lok?

Nitrous Al · 08-23-2002, 10:01 PM

The 28-spline 8.8" Ford Auburn and Eaton differentials are $350 and up. What shop or mail order company sells a limited slip for around $250? How much does the Ford Traction-Lok cost and where can I find one for $250?

SlowGT · 08-23-2002, 10:24 PM

If you've already got an 8.8 in the car, you might consider a rebuild kit. They run around $50. I changed the clutch & plate configuration in mine and tightened it up .022" and it works better than new. I get both tires gripping everytime now.

Just my $.02

Nitrous Al · 08-24-2002, 02:12 PM

I found a Ford dealer selling the 28-spline 8.8" Ford Traction-Lok differential for $215. What is the part number for this item?

BigEd · 08-24-2002, 03:42 PM

What is the 0.022" you are talking about and how to you check it? I just put a rebuild kit in my rearend and I just installed the same thickness shims. I'll set mine up the same as you if you tell me how.
Thanks,
Eddie

Nitrous Al · 08-24-2002, 04:03 PM

Anyone have the part number for a 28-spline 8.8" Ford Traction-Lok?

SlowGT · 08-24-2002, 08:55 PM

I don't know the part # off the top of my head, but I'll look it up when I get home.

I knew I should've took some pics before I put it back together. When I reassembled the clutch pack, I put a spacer between each clutch. I think the factory setup is 3 clutches and 4 spacers with 2 of the spacers back-to-back or maybe 2 of the clutches were back-to-back. I really don't recall. Anyway, I put a 4th clutch between the back-to-back spacers and used less shim on the outer end.

I used the measurements from the rebuild kit and assumed that the factory pieces were that size when they were new. I don't recall if the factory outer shim was stamped or if I had to measure it. The shims in the rebuild kit are all marked. .022" I believe was the over all improvement. The tighter you can make it the better. That was as tight as I could get it and still put it back together. If I had a mounted vice, I think I could've snuck another .005" on each side. Maybe next time.

SlowGT · 08-24-2002, 11:34 PM

Here's the part # if you still need it:

From page 97 of the 2002 Ford racing catalog-->

M-4204-F288

This is the 8.8, 28-spline, Traction-Lok. The number at the Ford parts counter may not be the same unless they're an SVT dealer.

BigEd · 08-25-2002, 05:03 PM

Hey SlowGT,
Can you help me out with the specifics of the .022" setup on your posi unit. I'd like to tighten mine up too.
thanks in advance,
Eddie

SlowGT · 08-26-2002, 01:50 PM

I don't have time at the moment, but I'll get you something in the next couple of days.

That timeslip on street tires or slicks?

SlowGT · 08-26-2002, 09:39 PM

I got a picture of the factory setup but I can't get it to load, so I'll do my best in text.

Here's how the factory setup is: c=clutch s=spacer sh=shim

spider gear-->C/ S / S /C/ S / S /C/.035"shim (your shim size may differ)

Here's how I put mine back together:

spider gear-->C/ S /C/ S /C/ S /C/.035" shim

Total measure of the factory setup is .655" on each side.
Total measure of my setup is .675" on each side.

Which is to say that I tightened up each side by .020" over the factory specs. Since my clutches were worn so bad I actually went .032 (on each side) over the tired clutchpack that was in there. (Remeasured the old clutches this evening)

I tried a .040" shim, but I couldn't get it together so I settled for the .035". I've also got 1 extra clutch and 1 less spacer.

Try it with the thickest shim you can get in there and work you way down 'til you get the assembly to roll back into the carrier.

Good luck dude. E-mail me if you have anymore ???

BTW: The Ford rebuild kit only comes with 6 clutches. You need to get an extra kit unless you can find the clutches separately.

Mach 1 · 08-27-2002, 05:12 AM

Does the F-150 8.8 use 31 spline axles?

SlowGT · 08-27-2002, 05:21 AM

That's the rumor. Could be a fact though. I've never researched it out before. Be a good question for the truck msg brd. Somebody over there must know.

08-23-2002, 10:01 PM	#1
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	Where can I find a cheap (price) Traction-Lok? The 28-spline 8.8" Ford Auburn and Eaton differentials are $350 and up. What shop or mail order company sells a limited slip for around $250? How much does the Ford Traction-Lok cost and where can I find one for $250?

08-23-2002, 10:24 PM	#2
SlowGT Registered Member Join Date: Jun 1999 Location: Columbia Co, PA Posts: 303	If you've already got an 8.8 in the car, you might consider a rebuild kit. They run around $50. I changed the clutch & plate configuration in mine and tightened it up .022" and it works better than new. I get both tires gripping everytime now. Just my $.02 __________________ Old Slow GT New Slow GT--> under construction Latest Addition: 95 Cobra R, #73, bone stock, ~6100 miles.

08-24-2002, 03:42 PM	#4
BigEd Registered Member Join Date: Mar 1999 Location: Lexington, SC Posts: 56	What is the 0.022" you are talking about and how to you check it? I just put a rebuild kit in my rearend and I just installed the same thickness shims. I'll set mine up the same as you if you tell me how. Thanks, Eddie __________________ Black 94 GT 5 speed. 10# Procharger, E cam, 2 chamber Flows, 3.73 gears, MAC offroad H pipe, MSD 6AL, SpeedBrain 12.94 @ 104MPH

08-24-2002, 08:55 PM	#6
SlowGT Registered Member Join Date: Jun 1999 Location: Columbia Co, PA Posts: 303	I don't know the part # off the top of my head, but I'll look it up when I get home. I knew I should've took some pics before I put it back together. When I reassembled the clutch pack, I put a spacer between each clutch. I think the factory setup is 3 clutches and 4 spacers with 2 of the spacers back-to-back or maybe 2 of the clutches were back-to-back. I really don't recall. Anyway, I put a 4th clutch between the back-to-back spacers and used less shim on the outer end. I used the measurements from the rebuild kit and assumed that the factory pieces were that size when they were new. I don't recall if the factory outer shim was stamped or if I had to measure it. The shims in the rebuild kit are all marked. .022" I believe was the over all improvement. The tighter you can make it the better. That was as tight as I could get it and still put it back together. If I had a mounted vice, I think I could've snuck another .005" on each side. Maybe next time. __________________ Old Slow GT New Slow GT--> under construction Latest Addition: 95 Cobra R, #73, bone stock, ~6100 miles.

08-24-2002, 11:34 PM	#7
SlowGT Registered Member Join Date: Jun 1999 Location: Columbia Co, PA Posts: 303	Here's the part # if you still need it: From page 97 of the 2002 Ford racing catalog--> M-4204-F288 This is the 8.8, 28-spline, Traction-Lok. The number at the Ford parts counter may not be the same unless they're an SVT dealer. __________________ Old Slow GT New Slow GT--> under construction Latest Addition: 95 Cobra R, #73, bone stock, ~6100 miles.

08-24-2002, 02:12 PM	#3
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	I found a Ford dealer selling the 28-spline 8.8" Ford Traction-Lok differential for $215. What is the part number for this item?

08-24-2002, 04:03 PM	#5
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	Anyone have the part number for a 28-spline 8.8" Ford Traction-Lok?

08-25-2002, 05:03 PM	#8
BigEd Registered Member Join Date: Mar 1999 Location: Lexington, SC Posts: 56	Hey SlowGT, Can you help me out with the specifics of the .022" setup on your posi unit. I'd like to tighten mine up too. thanks in advance, Eddie __________________ Black 94 GT 5 speed. 10# Procharger, E cam, 2 chamber Flows, 3.73 gears, MAC offroad H pipe, MSD 6AL, SpeedBrain 12.94 @ 104MPH

08-26-2002, 01:50 PM	#9
SlowGT Registered Member Join Date: Jun 1999 Location: Columbia Co, PA Posts: 303	I don't have time at the moment, but I'll get you something in the next couple of days. That timeslip on street tires or slicks? __________________ Old Slow GT New Slow GT--> under construction Latest Addition: 95 Cobra R, #73, bone stock, ~6100 miles.

08-26-2002, 09:39 PM	#10
SlowGT Registered Member Join Date: Jun 1999 Location: Columbia Co, PA Posts: 303	I got a picture of the factory setup but I can't get it to load, so I'll do my best in text. Here's how the factory setup is: c=clutch s=spacer sh=shim spider gear-->C/ S / S /C/ S / S /C/.035"shim (your shim size may differ) Here's how I put mine back together: spider gear-->C/ S /C/ S /C/ S /C/.035" shim Total measure of the factory setup is .655" on each side. Total measure of my setup is .675" on each side. Which is to say that I tightened up each side by .020" over the factory specs. Since my clutches were worn so bad I actually went .032 (on each side) over the tired clutchpack that was in there. (Remeasured the old clutches this evening) I tried a .040" shim, but I couldn't get it together so I settled for the .035". I've also got 1 extra clutch and 1 less spacer. Try it with the thickest shim you can get in there and work you way down 'til you get the assembly to roll back into the carrier. Good luck dude. E-mail me if you have anymore ??? BTW: The Ford rebuild kit only comes with 6 clutches. You need to get an extra kit unless you can find the clutches separately. __________________ Old Slow GT New Slow GT--> under construction Latest Addition: 95 Cobra R, #73, bone stock, ~6100 miles.

08-27-2002, 05:12 AM	#11
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Does the F-150 8.8 use 31 spline axles? __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

08-27-2002, 05:21 AM	#12
SlowGT Registered Member Join Date: Jun 1999 Location: Columbia Co, PA Posts: 303	That's the rumor. Could be a fact though. I've never researched it out before. Be a good question for the truck msg brd. Somebody over there must know. __________________ Old Slow GT New Slow GT--> under construction Latest Addition: 95 Cobra R, #73, bone stock, ~6100 miles.

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