Noisy 97 GTS ******

Rock Morgan

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Morning all,

After a 5 year's and a new user name I'm back as a Viper owner. I finally landed my dream Viper, and 97 b/w GTS. This is my 6th Viper, and 3rd GTS, however it has been 5 years since I've had one and I'm sort of out of the loop. The GTS I bought has a noticable transmission whine. It's more prevalent at low rpm cruising, 6th gear 75 mph, and it get's quiter as the ****** fluid warms up. I've had a transmission go bad on a GTS back in the day and this transmission feels fine. No miss shifts, never grinds, shifts easy, and never pops out of gear. My question is this, we checked the ****** fluid and it's very new looking. I know the car had all scheduled maintence done at a Texas exotic car dealership the last 2 years, including the ****** serviced at 24000 miles. It now has 25000 miles. From my experience with manual transmissions I believe it has the wrong gear oil in it causing a ****** whine. The fluid seems very light to me, but I've been dealing the A-833 hemi 4-speeds the last few years in my 69 Charger. What weight oil and or additive can be put in this ****** to help quit it down.

Thanks
 

99 R/T 10

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I thought all the 1998 and earlier cars were filled with ATF Dextron III, unless you want to get rid of the NGR. I guess you could use either ATF or Castrol Syntorque.
 
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Rock Morgan

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I thought I read where the original fluid is not available anymore.
 

Steve-Indy

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The official replacement for Dexron III is Mopar's ATF+4 (can be used in 92-98 Vipers...and MUST be used in 08-09 Vipers).

That said, you can also try the Mopar Synthetic Manual Transmission Lubricant 75W-85 as used on 99-06 Vipers(and for neutral gear rattle on 94-98 Vipers).

Our 97 b/w GTS ****** seems happy with Dexron III which I have changed every couple of years...though will switch to ATF+4 next time.
 
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Rock Morgan

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I may try the 75W-85. Maybe the neutral gear rattle is what I'm hearing. All my other Vipers had 15,000 miles or less. This is the highest mileage Viper I've bought.
 

Trans Doc

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We use the Castrol fluid in all Viper T-56 transmissions, 92 to 06. The part number for the fluid is Mopar 4874459 or GM # 12346190.
 

Maniako

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The official replacement for Dexron III is Mopar's ATF+4 (can be used in 92-98 Vipers...and MUST be used in 08-09 Vipers).

That said, you can also try the Mopar Synthetic Manual Transmission Lubricant 75W-85 as used on 99-06 Vipers(and for neutral gear rattle on 94-98 Vipers).

Our 97 b/w GTS ****** seems happy with Dexron III which I have changed every couple of years...though will switch to ATF+4 next time.

Hi

Do you still use ATF + 4 oil for the GTS 97r? Is the manufacturer code 68218058AA? MOPAR ATF + 4 5.946L MS-9602?

Thank you
 

Steve-Indy

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MOPAR ATF+4 in 1 quart bottles is part number 68218057AC per the latest dealer chemical catalog.

The number you listed ( 68218058AA) is for MOPAR ATF+4 in the 5 Liter container...noting that the "AA" is now "AC".

I have yet to switch out our 97's fairly fresh Dexron III.
 

KyViper

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In my 97 I use ATF+4 (MS-9602, 68218057AA is Qt size) in my Transmission. I would also look to replace the Rear end **** 75W-140 and Friction control additive while you are at it.
 

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