C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Tom's Differential - Anyone ???

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Old Mar 2, 2005 | 12:46 PM
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Default Tom's Differential - Anyone ???

The Feb 2005 HotRod had an article on Tom's upgrade for earlier (C2/C3) Vette IRS/diff.

Checked the site out and they seem to have plenty available for the C4 as well. I'm planning to pull my Dana 36 w/3:08 and will replace w/Dana 44 and 3:54 or 3:73. I don't drive the car more than 2-4K per year, not much highway either. Trans and TC have been upgraded. Will be doing the cooling system this summer w/Be-Cool (or ?) Rad and new Heater Core (probably also a different trans cooler as well). Next year (or possibly the year after) will be a large displacement (400cid+) SBC. Want the neck snapping performance I used to have w/my older iron muscle.

So, what about Tom's Diff? Anyone have anything good/bad to say.

Thanks.
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Old Mar 2, 2005 | 12:51 PM
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All good! Welcome to the forum.

Whoops, looks like you have been around a while. Saw the junior status and assumed. Heck, welcome anyway.

Last edited by Pete K; Mar 2, 2005 at 12:54 PM.
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Old Mar 2, 2005 | 12:55 PM
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I don't know.... I called them and was told they didn't make anything for the C4. Was very dissapointed.

But you say the web site says they do eh? strange! I might call them back
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Old Mar 2, 2005 | 12:55 PM
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Tom's does not have anything for us C4 guys... I've checked with Tom's, Moser, Randy's, Currie, Strange, and I can't remeber the other place that sells the high end third memeber.. nothing there either.. Go back and find a thread on "9 Second Dana 44s"
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Old Mar 2, 2005 | 12:56 PM
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I take that back - they don't make any 12 bolt IRS conversions for the C4. I don't know about other diffs
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Old Mar 2, 2005 | 01:50 PM
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I believe I talked to a guy named Kenny down there at Tom's. I just bought some cold forged Spicer u-joints from them. There was another guy down there I talked with also, but he was kinda Grumpy. I suggest you ask for Kenny.
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Old Mar 2, 2005 | 01:55 PM
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I have cryo'd pinion yoke, inner axles, outer axles, and cold forged u-joints on my d44 and I can say the parts are beatiful in their own right and I haven't had any problems with them.

All parts cam from Tom's, I will say they were NOT cheap
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