Author Topic: which t case do i have?  (Read 3558 times)

Offline 1980 gold

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which t case do i have?
« on: July 15, 2011, 05:59:47 pm »
my truck is a 1987 swb 4wd 350 4spd.i assume i have the sm465 but not sure on which t case i have 205 or 208? also does anyone know the # of splines on the output shaft on this trans?

Offline 1979C20

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Re: which t case do i have?
« Reply #1 on: July 15, 2011, 06:58:16 pm »
The 4x4 versions can have either a 10 or 32 spline out put shaft.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline topp

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Re: which t case do i have?
« Reply #2 on: July 15, 2011, 07:23:19 pm »
'87 should be NP208
'90 Suburban TBI 350

Offline Irish_Alley

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Re: which t case do i have?
« Reply #3 on: July 15, 2011, 07:38:40 pm »
208 with 32 splines
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline 1980 gold

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Re: which t case do i have?
« Reply #4 on: July 15, 2011, 09:44:23 pm »
thanks guys i appreciate it

Offline 1980 gold

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Re: which t case do i have?
« Reply #5 on: July 15, 2011, 10:11:29 pm »
so if i wanted to change to an automatic i could use a turbo 400? just a thought

Offline Irish_Alley

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Re: which t case do i have?
« Reply #6 on: July 16, 2011, 12:49:02 am »
could but you need that adapter plat and all might as well get a whole unit most time people dont want to split a 4x4 transmission and transfer case just to sell the trans. also you will need, lets say you do get a 400 you need drive shafts front and rear and cross member
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline 1979C20

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Re: which t case do i have?
« Reply #7 on: July 16, 2011, 12:14:01 pm »
And pedal assembly, cooler lines, cooler, shift linkage, column, and torque converter.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF