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!988 D/N 4+3 4spd

muddywaters

Well-known member
Joined
Aug 25, 2002
Messages
765
Location
wilkes-barre,pa.usa
Corvette
1988 white 4+3 coupe 99 Torch Red 6spd. coupe
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
 
Joined
Oct 20, 2008
Messages
925
Location
Portage, Indiana
Corvette
2010 Grand Sport Vert JS Blue

Hib Halverson

Technical Writer for Internet & Print Media
Joined
Jan 10, 2001
Messages
13,452
Location
CenCoast CA
Corvette
71 04 12 19
The gearbox section takes a 75W90 gear lubricant.
The overdrive section uses ATF.
 

muddywaters

Well-known member
Joined
Aug 25, 2002
Messages
765
Location
wilkes-barre,pa.usa
Corvette
1988 white 4+3 coupe 99 Torch Red 6spd. coupe
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
 

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