im still working on this list ive found most the info from other places so it may not be right. if you find a problem reply and we will fix the problem
Transmissions
Powerglide 2wd (short) 25.35"
Powerglide 2wd (long) 27.56"
Powerglide 4wd 20.56"
TH350 2wd 6 tailshaft 27.68"
TH350 2wd 9 tailshaft 30.68"
TH350 2wd 12 tailshaft 33.84"
TH350 4wd 21.625"
TH400 2wd short tailshaft 28.375"
TH400 2wd med tailshaft 33.843"
TH400 2wd long tailshaft 37.875"
TH400 4wd 24.375
TH400 4wd 27.9375"
700R4 2wd 30.75
700R4 4wd 23.375
4L80E Std 2wd 32.6875
4L80E HD 2wd 31.9375
4L80E HD long 33
4L80E 4wd 30.375
NV4500 Bell housing 6.875"
NV4500 Trans 20.75"
SM465 2wd (bell to yoke): 24"
SM465 case length: 11.875"
SM465 Bell housing: 6.5"
Transfer cases
NP241: 18.5"
NP208 or NP241 -700R4 adapter height from center line: 3.25"
NP241/TH400 (tall) adapter height from center line: 7.625"
NP241/TH400 (short) adapter height from center line: 3.75"
NP241 to NV4500: 8"
205 case thickness: 6"
NP205-TH350 adapter: 3.5"
NP205-TH400 adapter: 4"
NP205 assembled with yoke: 12.5"
NP205 assembled with slip yoke housing: 14.875"
NP205/SM465 adapter height from center line: 6.75"
NP205-NV4500 (long input shaft adapter) 1.6875
NP203-SM465 adapter: 4.25"
NP203-TH350 adapter: 1"
NP203 Reduction Box: 5.75"
NP208: 18.5"
NP208-TH400 adapter: 2.5"
NP205 TH400 output shaft protrusion: 4.5"
NP203-TH400 output shaft protrusion: 2.125"
NP208/NP241-TH400 output shaft protrusion: 3.375"
TH350 27 spline 4x4 output shaft protrusion: .75"
Auto to manual transmission swap
http://coloradok5.com/auto2manual.shtml