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#1229719 08/12/2017 1:20 PM
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I have a 1989 WC Camaro V8 T5 /S10 conversion with a 26 spline input. THe clutch is a 26 spline Made in Brazil 10+1/2" with little wear. However If I were to replace the clutch and pressure plate any recommendations? Could the clutch be an Astrovan clutch?


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52pu #1229833 08/13/2017 11:20 AM
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The Astro van clutch had 14 splines. Your clutch disc might be from a 1992 Camaro. You can install an 11" clutch with 26 splines if you prefer. I have the info listed on my T5 resource list.

T5 Resource List

Flywheel and Clutch for V8 T5
1980 C10 6.6 L engine = 168 tooth flywheel and 11” clutch disc with 26 splines (V8 Camaro)
1994 V6 Camaro uses a 9.5" clutch disc with 26 splines.
1992 Camaro with the 305ci V8 uses a 10 + 3/8" clutch disc 26 splines.

52pu #1229946 08/14/2017 1:56 AM
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Lugnutz,

Thank you, that gives me a direction to go.


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52pu #1229986 08/14/2017 6:28 AM
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Curious what you guys are running as a lubricant in the T5?

After much research, although my salvage yard non world class (standard) T5 trans had what I believe was Dexron II in it, I decided to run Pennzoil Synchro, as I discovered that each car manufacturer that used the T5 in their cars specified whatever they wanted as a lubricant, because Brog Warner did not specify a lubricant when they made the transmission.... Dexron II no longer being available, and Dexron III being sold as a replacement, but those two fluids seem very different to me... and there seems to be a growing number of guys running the Synchro oil who are having good luck with it.


~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission
Norcal Dave #1229994 08/14/2017 11:10 AM
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Originally Posted by Norcal Dave
Curious what you guys are running as a lubricant in the T5?

After much research, although my salvage yard non world class (standard) T5 trans had what I believe was Dexron II in it, I decided to run Pennzoil Synchro, as I discovered that each car manufacturer that used the T5 in their cars specified whatever they wanted as a lubricant, because Brog Warner did not specify a lubricant when they made the transmission.... Dexron II no longer being available, and Dexron III being sold as a replacement, but those two fluids seem very different to me... and there seems to be a growing number of guys running the Synchro oil who are having good luck with it.

I have a friend who runs a transmission shop in Atlanta. They specialize in manual trannys for Mustangs and have serviced and rebuilt many T5s. He recommends either Synchromesh or Dex/Merc. Synchromesh is a bit thicker and runs quieter. Dex/Merc is a recommended substitute for Dexron III and allows for quicker shifting (so they say).
I use Synchromesh in mine.

Last edited by Lugnutz; 08/14/2017 11:13 AM.
Lugnutz #1230064 08/14/2017 9:25 PM
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I don't quite know what to make of this found last nite: from gmpartsdirect.com "any vehicle that uses Dexron lll for manual transmissions - should now use PN 88861800 Manual transmission & Transfer case fluid". I suppose it's specifically formulated for our T5 WC applications that require ATF? Type lll back comparable to Type ll, which is what we can't find.


"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr
52pu #1230204 08/15/2017 3:39 PM
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This morning I had the bright idea to e-mail Tremec transmission who I understand bought Borg Warner and asked them specifically what (fluid) to use in a 98 WC GM V8 camaro T5? "Correct fluid to use with the T5 WC boxes is either Dexron/Merton lll or Mobil1 Synthetic ATF". The second question I asked was; Does the Borg Warner and Tremec 5 speed boxes take the same fluid? I did not get a response to that question. So I guess we've beat this enough.


"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
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52pu #1230217 08/15/2017 5:52 PM
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Interesting... but no guidance from Tremec on the NWC boxes. I think I'll stick with the Synchromesh oil in my NWC T5


~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission
52pu #1230256 08/15/2017 8:46 PM
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Norcal Dave,

I didn't ask about NWC. Here's the number 800-401-9866.


"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr
52pu #1230298 08/16/2017 1:32 AM
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Lots of NWC T-5s came with gear oil.


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
52Carl #1230301 08/16/2017 1:37 AM
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Originally Posted by 52Carl
Lots of NWC T-5s came with gear oil.

I can't remember who it was here on the Stovebolt, but they owned an S10 with a NWC T5. They went out and looked at the owners manual in the glove box to check what tranny fluid was required. The owner's manual said Dexron II for the NWC T5. I have heard that the really early T5s used gear oil. Can't go wrong with Dex/Merc for a NWC T5.

52pu #1230334 08/16/2017 5:24 AM
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Originally Posted by 52pu
Norcal Dave,

I didn't ask about NWC. Here's the number 800-401-9866.

Thanks 52pu


~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission
52pu #1230425 08/16/2017 8:19 PM
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Originally Posted by 52pu
I don't quite know what to make of this found last nite: from gmpartsdirect.com "any vehicle that uses Dexron lll for manual transmissions - should now use PN 88861800 Manual transmission & Transfer case fluid". I suppose it's specifically formulated for our T5 WC applications that require ATF? Type lll back comparable to Type ll, which is what we can't find.


When G.M. started back servicing all of their automatics back to the '40 w/ Dexron VI they relabeled Dexron III as 88861800 Manual transmission & Transfer case fluid.
the reason I was given by G.M. is Dex VI is semi-synthetic & not validated for seals & sealant used on older manual transmissions & transfer cases.


BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
52pu #1230586 08/17/2017 5:24 PM
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BC59,

Got it, I understand now why GM came up with the 88861800. Thank you.


"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr

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