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

Trans failure, Overdrive is Gone, Help!!!!!

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Old Aug 22, 2004 | 01:11 PM
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Default Trans failure, Overdrive is Gone, Help!!!!!

Driving yesterday, normal stuff, no abuse, I never do burnouts just stand on the gas when accelerating.

I have a 93 with an auto trans

So there is a nasty sound & all of a sudden I am coasting, at least D still works although it makes nasty sounds occasionally. What happened ? How much to fix ? Thanks

Reverse works fine, didnt try 1 or 2 but I think its just OD thats gone
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Old Aug 22, 2004 | 01:32 PM
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need to pull stick and see if there is metal in fluid, and smell id burnt.
also test in all mode's.... good luck
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Old Aug 22, 2004 | 02:01 PM
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I wasn't lucky enough to have JUST the 3-4 clutch pack fail(which it sounds like yours did) when my 700's went.

Figure around $800-1000 to FULLY re-do the trans.
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Old Aug 22, 2004 | 02:03 PM
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Thanks, What kind of Hi-Po products are there out there so this doesnt happen again ?
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Old Aug 22, 2004 | 02:15 PM
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Stronger Clutches, stronger sun gear, 12 vane pump, and a shift kit and higher stall converter for good measure and a little more kick in the pants
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Old Aug 22, 2004 | 05:03 PM
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Yes, what Wheelman said and I would also suggest a .500 boost valve and a billet 4th servo and a kevlar band. I used a 9 clutch 3-4 clutch pack and a new seperator plate is a good idea as well. I have nearly $500 in new parts alone in my tranny not counting the convertor. A tranny cooler is another item that is worth every penny.
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Old Aug 22, 2004 | 05:30 PM
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Originally Posted by Mjolitor 68
Thanks, What kind of Hi-Po products are there out there so this doesnt happen again ?

As previously mentioned,I would also suggest trans cooler such as the B&M Super Cooler. Definately a good idea since B&M claims most trans fail do to overheating than anything else. The cost is less than $60.

Last edited by 86PACER; Aug 22, 2004 at 05:33 PM.
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