t-case crossmember

[35dp]

I have a Turbo 400 and NP205 t-case and I need a crossmember for this setup, Im not sure if there are different styles of crossmembers or what. if you have one let me know, thx. Dustin

 

[kennyw]

What year is your setup? Main difference was by year 70's flat crossmember vs 80's single or double hump.

 

[35dp]

it came from an 80's model, 86 (I think) 1-ton. I have a double hump from an 86 4 speed truck with a NP208. are they the same?

 

[kennyw]

it came from an 80's model, 86 (I think) 1-ton. I have a double hump from an 86 4 speed truck with a NP208. are they the same?

I would expect it to work if it is out of the same series (1/2 or 3/4 ton vs/ 1 ton) that your truck is. The 1 ton frame is taller than the 1/2 or 3/4 ton so the crossmember is a little different between the two. But GM made all the crossmembers work for all tranny/tcase combo's if your adapter is the right height in that year range.

I'm not sure if there is a tall/short adapter in for the 400/205 like is common on the 400/208 or 700R4/208 combo's.

Measurements from the approx centerline of the adapter bore to the bottom of the foot should help you get the right crossmember though. There are three styles I have seen, flat (73-early 80's), double hump (mid 80's) and single hump (late 80's-91).

 

[boz42]

Round pattern 205 adapters are shorter in hieght than the figure 8 205 adapters, so that will make a difference. I do not know which year they swapped. from figure 8 to round pattern adapters.