How common is 9" Trac-Lock?

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Mar 19, 2004 | 07:21 PM

illuminance72

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How common is 9" Trac-Lock?

I have been searching the self-service yards for months now, checking out Ford rears for a traction Lock set-up. I have probably looked at 300 vehicles with no luck. Are these extremely rare? Were they only an option, or did Ford make a lot of these? Plus, even on the open carriers, Ive never seen higher gears than 3.50. Maybe I just have to look at another 300 vehicles, I dunno.

Mar 20, 2004 | 05:59 AM

RTM

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From: Sunny Florida

I have found them in vans, trucks and full size cars. The cars and the vans all had 28 spline set ups and some trucks could have 28 spline as well. Most 31 spline trac locs that I've found have been in 4X4 trucks.

I have only found one 3.70 gear myself. Mostly 3.50 gears and a few 3.25.

Mar 20, 2004 | 02:57 PM

Txquadhunter24

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my 78 F150 came with 4.10's and T-lock. so steaper gears are out there. I've had no luck finding a 3.50 geared 9" since i've been hunting one. 3.00:1 seems to be the common found in my case.

Mar 20, 2004 | 06:50 PM

RTM

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3.00 is very common. I found two of them today and one had the trac loc in it. I just hope it's still there next Saturday when I go back to get it. There was no one there to cut it out for me today.

What I should have said about the 3.50 gears is I have found more of them with trac locs than any other gears.

Mar 22, 2004 | 11:38 AM

007bronco

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I believe all full size bronco's 78-85 with 9" had 3:50 gears and Trac Lok, 31 spline.

Mar 22, 2004 | 12:13 PM

Boss_358

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Quote:

Originally posted by 007bronco
I believe all full size bronco's 78-85 with 9" had 3:50 gears and Trac Lok, 31 spline.

Do you really mean all or that these are the most common vehicle that this set up is found in. Saying that all of them came with 3.50 gears and Trac Lok would be misleading information. My 82 bronco has an open carrier and 3.00 gears. Also, Ford started using the 8.8 in 83 or 84, as well as the 9.

Mar 22, 2004 | 02:49 PM

RTM

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From: Sunny Florida

They are the most common for 3.50 set ups but not all of them had trac locs.

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Mar 23, 2004 | 12:54 PM

007bronco

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From: British Columbia

You are right, after more research I see that the Bronco from 78-84 1/2 had the 9", 31 spline, 3 07, 3 50 or 4 10 open or trac lok options.
all 4 bronco's I have owned ( 2 1978's, a 1980 and a 1982) all had trac lok and 3:50 gears so I made an assumption that I should have checked on first.

007BRONCO