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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 82chevyk20 on March 24, 2014, 10:36:01 pm

Title: transmission and tcase help
Post by: 82chevyk20 on March 24, 2014, 10:36:01 pm
okay everybody ive got some questions i hope yall can help with my 82 k20 th350 as dad says ''screwed the pooch'' yesterday. now i have a 83 parts truck that has a good th350 and a 241 case will this transmission work the 82s tcase is a 208 or do i need to swap transmission and case if thats the case will my k20s driveshaft work or will i need another one im not a transmission guy ive had 2 autos work succesfully after rebuilding thanks for any help it is appreceated both engines are 350s
Title: Re: transmission and tcase help
Post by: Captkaos on March 24, 2014, 11:25:28 pm
A 241 never came behind a TH350, they came out in 1989 and the TH350 was long phased out..  I pretty sure it is a NP208.  So it will work fine.
Title: Re: transmission and tcase help
Post by: 82chevyk20 on March 25, 2014, 02:21:07 pm
the tag on the case says 241 im not a transmission guy so its got me lost i dont know if the tag could have been changed  heres what the tag says 241c 15624673 67 89 3 272 ratio its the screw on new process tag im not saying it isnt a 208
Title: Re: transmission and tcase help
Post by: blazing816 on March 25, 2014, 03:24:17 pm
are you sure the parts truck is a th350??? or could it be the 700r4/4l60???
Title: Re: transmission and tcase help
Post by: Captkaos on March 25, 2014, 03:26:25 pm
It could have been swapped.  The 241 replace the 208, so it should swap.  Can you verify that the trans is a TH350?

Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz

Title: Re: transmission and tcase help
Post by: 82chevyk20 on March 25, 2014, 05:29:13 pm
are you sure the parts truck is a th350??? or could it be the 700r4/4l60???
It could have been swapped.  The 241 replace the 208, so it should swap.  Can you verify that the trans is a TH350?

Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz
im 100% positive it is a th350
Title: Re: transmission and tcase help
Post by: Irish_Alley on March 26, 2014, 12:57:03 am
the th350 is a 27 spline trans, the 241 is either a 32 OR 27. the np208 is a 27 also (so is the 700r4.4l60) but you should be able to swap the adapter plates and t case and use the other drive shafts as long as the beds are the same
Title: Re: transmission and tcase help
Post by: 82chevyk20 on March 26, 2014, 02:40:26 pm
thanks they are both longbeds so it should work i had a buddy wanting to buy the 241 now he dosent know if he wants it or not so it may go in the k20