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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: screamin86 on November 25, 2009, 05:26:49 pm

Title: what spline count on 86 np208 on the transmission side?
Post by: screamin86 on November 25, 2009, 05:26:49 pm

Ok guys i need to know what the spline count is for the input side of the 86 np208. My truck had a th350 swap at some time and was swaped with a.6in shaft trans with a aluminum spacer.i ordered a brand new trans through summit today and then after i got to work started thinking ab out the spline count.so if anyone knows could you let me know asap cause if this trans will not fit ill call and cancel or if i can convert the 208 to a diffrent input that would work too!

Title: Re: what spline count on 86 np208 on the transmission side?
Post by: Camfirchev on November 26, 2009, 04:39:05 am

28 Spline.

Title: Re: what spline count on 86 np208 on the transmission side?
Post by: screamin86 on November 28, 2009, 10:01:40 pm

Sorry i ment to post that i found a site that said there were two versions a 27 and a 32 mine is a 27 and it will work with the transmission i ordered! Thanks :)

Title: Re: what spline count on 86 np208 on the transmission side?
Post by: 87GMC on November 30, 2009, 04:28:49 pm

To my knowledge all NP208 were a 32 spline.  The NP205 was a 27 spline.