Transmission Code / SPID - The 1947 - Present Chevrolet & GMC Truck Message Board Network

harrydunn · 12-09-2010, 09:56 AM

Morning Guys--

Will the transmission code on the SPID tell me whether I've got a TH350 or TH400? I need to take a photo and post that up I suppose.

Also, I've not been around old transmissions since the days of my '68 Cutlass (2-speed Jetaway) and '74 Camaro (3-spd manual) many moons ago. Would you advise to at least change the fluid/filter or should I leave things alone? I've got some engine oil records but nothing on when the transmission may have been serviced. Shifts very smoothly.

Thanks,

Mark

12-09-2010, 09:56 AM	#1
harrydunn Registered User Join Date: Dec 2010 Location: Columbia, MO Posts: 256	Transmission Code / SPID Morning Guys-- Will the transmission code on the SPID tell me whether I've got a TH350 or TH400? I need to take a photo and post that up I suppose. Also, I've not been around old transmissions since the days of my '68 Cutlass (2-speed Jetaway) and '74 Camaro (3-spd manual) many moons ago. Would you advise to at least change the fluid/filter or should I leave things alone? I've got some engine oil records but nothing on when the transmission may have been serviced. Shifts very smoothly. Thanks, Mark __________________ 1972 GMC 2500 Custom, 96K miles, Purchased New By My Grandparents 2016 Toyota Tundra TRD Off-Road SR5 1993/2003/2005 Toyota Land Cruisers 2004 Corvette Z06 / 2000 Covette Coupe 2006 Ducati Multistrada 2014 BMW X3 XDrive35i M Sport



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