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trans/tcase splined coupler

cybrfire

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I think its found between the TH350 and 205's, a splined coupler.

Anybody know the spline count off the top of their head?
 
Just a shot in the dark here but isnt all the output/input **** 27 or 32 spline? And wouldnt the 205 being a 1 ton case make it 32 spline?
 
Just a shot in the dark here but isnt all the output/input **** 27 or 32 spline? And wouldnt the 205 being a 1 ton case make it 32 spline?


205 all the same basic strength . but 10 and 27 spline small input got small bearing . the short and long input 32 spline from th400/later 465 versions got bigger beearing to match the bigger input gear.

the case is just bored out a big bigger were the input bearing goes is all.
 
205 all the same basic strength . but 10 and 27 spline small input got small bearing . the short and long input 32 spline from th400/later 465 versions got bigger beearing to match the bigger input gear.

the case is just bored out a big bigger were the input bearing goes is all.

Hmmm good to know. dont have much experience with autos in 4wd. I just thought the smart choice would be to beef up the output on the trans going into a stout case rather than take away from the case...
 
So we're saying 27 spline? That sounds right to me.
 
dont realy ever break a output shaft on them. only time i have heard of breakage is 203/205 doubler. and running 4wd and 203 range in low and 205 in high can snap 203 output shaft to 205 input . so always run tcase low range first in doubler.
 
205 all the same basic strength . but 10 and 27 spline small input got small bearing . the short and long input 32 spline from th400/later 465 versions got bigger beearing to match the bigger input gear.

the case is just bored out a big bigger were the input bearing goes is all.

Not sure if you're saying all 205 input gears are similar in strength, that is far from the truth.

There are four versions of the 205 input gears that used drive sleeves, of those, these three are similar in strength:

10 spline ('84 and older SM465)
27 spline (TH350)
23 spline (most Dodge)

The fourth came in '89-93 Dodge Cummins trucks behind the Getrag 5 speed manual and is far stronger than the aforementioned gears, larger/stronger in fact than the 32 spline connection.
 
Not sure if you're saying all 205 input gears are similar in strength, that is far from the truth.

There are four versions of the 205 input gears that used drive sleeves, of those, these three are similar in strength:

10 spline ('84 and older SM465)
27 spline (TH350)
23 spline (most Dodge)

The fourth came in '89-93 Dodge Cummins trucks behind the Getrag 5 speed manual and is far stronger than the aforementioned gears, larger/stronger in fact than the 32 spline connection.
Don't forget Ford which is 31 spline.
 
the 31 spline ford version doesn't use a drive sleeve...
 
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