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02-28-2012, 05:46 PM #1
Does Detroit TrueTrac come stock on 14 bolt diffs?
Does anyone know if the Silverado 14 bolt diffs came stock with Detroit TrueTrac. I would like to upgrade my Tahoe to a 14 Bolt TrueTrac, and I thought that I could get one from the junk yard and modify it for my 2003 Z71 Tahoe. Thanks.Bill M. Blown 2003 Tahoe Z71
02-28-2012, 09:34 PM #2
As far as I know, the only differential types offered from the factory are open diff or the Eaton gov lock (G80).'98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
'92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
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02-29-2012, 01:30 PM #3
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02-29-2012, 03:08 PM #4
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A Detroit locker came in 14 bolts that were put in military trucks, but that's it. Like MrShorty said, trucks equipped with the G80 option have eaton limited slip lockers in them. If you have a 10.5" 14 bolt axle, the Detroit locker is cheaper than your average locker because it doesn't require a new carrier.
Your Tahoe doesn't have a 14 bolt in it, does it? 14 bolts were only put in 3/4 and 1-ton trucks, and depending on the 3/4 ton truck, it may have had either a 9.5" semi-floating 14-bolt or a 10.5" full floating 14-bolt.Christopher
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02-29-2012, 04:08 PM #5
Yes, the Tahoe comes with a 10 Bolt Diff. The Plan is to get the Silverado 14 Bolt and fit it to the Tahoe. First, I will remove the 10 Bolt, and cut the axle housings off. I will cut the 14 Bolt's axle housings off. Machine the resulting Diff with a press fit sleeve and weld the 10 Bolt's axle housings onto the 14 Bolt's sleeve and Diff. That gives me the 14 Bolt Diff with the Tahoe's suspension. I have ordered Dutchman forged 31 spline axles with the 6 lug bolts for the wheels. I guess that I will have to get a new Detroit TrueTrac. The 14 Bolt came with the Eaton Gov Loc. I am planning on changing the gears on the front and back to 4.56:1. To complete the change over, I will get a Mag HyTech cover. I forgot, I have to shorten the drive shaft, and replace the U-Joints with some new forged ones.
02-29-2012, 06:33 PM #6
The G80, is only a designation for a "limited slip" "type" of axle
My 02 Avalanche had the G80 RPO, which was the gov lock type
My C5500 had the G80 RPO, which is the torsen type which is closest to the True-trac
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