!988 D/N 4+3 4spd

[muddywaters]

Hi everyone it's been a while, My question..............What lubricant did the 88 4spd B/W Super T-10 trans. come with from the factory, it's too old for synthetics that leak. Local Chevy dealer did not find that info and neither can I..Any input will be app. Thanks

 

[BigJimZ16]

Hi everyone it's been a while, My question..............What lubricant did the 88 4spd B/W Super T-10 trans. come with from the factory, it's too old for synthetics that leak. Local Chevy dealer did not find that info and neither can I..Any input will be app. Thanks

According to this info the T10 should use 80wt lube...

https://www.gmheritagecenter.com/do...ion-kits/Corvette/1988-Chevrolet-Corvette.pdf

 

[Hib Halverson]

The gearbox section takes a 75W90 gear lubricant.
The overdrive section uses ATF.

 

[muddywaters]

Thanks Hib, It's the gear box , is that 75w90 synthetic or otherwise and is the tranny considered a syncromesh? I've had issues with synthetic lubes leaking where there was no leak before. The straight gear lube says it for non-syncromesh trannies, I'm confused Thanks in advance