02-25-2021, 01:26 AM | #1 |
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Th400 - np205 adapter
Can a th400-np205 adapter be used on a 4l80-np205 thanks much
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02-25-2021, 06:07 AM | #2 |
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Re: Th400 - np205 adapter
It can but it’s not 100% bolt on. Can’t remember exactly, but it’s on the trans side of the adapter. Google it, info out there lol.
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02-25-2021, 08:24 AM | #3 |
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Re: Th400 - np205 adapter
What version ? Fig 8 or round 6 205 .
And yes its the trans side that needs the attention. Round 6 style they make a adapter/ spacer for ZERO mods bult up . Fig 8 needs little more work . What 4l80-e trans output shaft length are you running ? Stock 4x4 or 2wd slip fixed or full spline 2wd ?
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02-25-2021, 10:15 AM | #4 | |
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Re: Th400 - np205 adapter
Quote:
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02-25-2021, 11:21 AM | #5 |
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Re: Th400 - np205 adapter
All the 4l80s are 32 spline (i believe) but you'll need 4'' of stick out
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02-25-2021, 11:49 AM | #6 |
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Re: Th400 - np205 adapter
32 spline th400/4l80-e stuff is male female only .
Coupler sleeve is only 27 spline or 10 spline . You need to do some measuring work to make sure the stock adapter will give full spline fit . You might need to swap the short 205 input gear for a long input gear used on round 6 style 205 to get you were you need to be . Another option if trans is not built yet is a 2wd full spline shaft and cut off extra as needed . Then also machine the index lip down a few tho to fit in the case bore on the 4l80-e . And how do you plan to run the trans with no electric speedo sender on the 205 ? There is ways around this . Few places do mod them for a sensor now . But you loose mech speedo .
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77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
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