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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: trem0r on June 02, 2009, 10:16:38 am

Title: Transmission and rearend identification and verification
Post by: trem0r on June 02, 2009, 10:16:38 am

This is from the underside of my newly aquired project truck.  82 swb.
I'm pretty sure that this is a th350 and a 10bolt, can someone please verify?

Title: Re: Transmission and rearend identification and verification
Post by: trem0r on June 02, 2009, 10:17:05 am

And here is the rearend:

Title: Re: Transmission and rearend identification and verification
Post by: 4x4orbust on June 02, 2009, 10:54:50 am

you are correct sir.

Title: Re: Transmission and rearend identification and verification
Post by: trem0r on June 02, 2009, 10:58:02 am

Sweet deal.  Thank you so much!

Any idea on how to identify what kind of gearing the 10 bolt has in it?

Title: Re: Transmission and rearend identification and verification
Post by: Captkaos on June 02, 2009, 06:38:54 pm

pull the cover off and read the numbers on it and divide.

Title: Re: Transmission and rearend identification and verification
Post by: 4x4orbust on June 02, 2009, 07:12:14 pm

not sure if you have the RPO codes in your glovebox, they will tell you gear ratio. my 82 has 3.08, others have 3.42 (i believe).   another way to tell is to mark your driveshaft, then turn the wheel one full rotation while counting the driveshaft rotations.  the ammount your driveshaft turns is approximate gear ratio.  to know for sure what you have, you have to pull the cover and count.

Title: Re: Transmission and rearend identification and verification
Post by: trem0r on June 03, 2009, 12:30:03 am

Cool.  Thanks guys