TRNW-2: 4R70W question.

[Ryan D]

The shop I'm doing this unit for has a core with 2 speed sensors. I also
need the pump and planet from it. I might as well use the case while I'm at
it. The original case is cracked.

On Friday, November 7, 2025, Chris and Cathy Kershaw via trnw2 <
trnw2 at trnw.net> wrote:

> I have also seen cases where the input is plugged from the factory. I
> think it will work but I’ll add that 1 speed sensor crown Vic units are
> cheap and plentiful in junkyards & core dealers. 2 speed sensor cores are
> worth 2x as much.
>
> On Fri, Nov 7, 2025 at 1:22 PM Dan Hogan via trnw2 <trnw2 at trnw.net> wrote:
>
>> If you use the matching rear ring gear and sensor, I agree this should
>> work fine.  Like Pat, I've also seen transition cases with both holes and a
>> dummy plug present in the turbine shaft side for the years prior to
>> officially using the input speed sensor.
>>
>>
>>
>> ---
>>
>>
>> Dan Hogan
>>
>> Buster's Transmission Service
>>
>> https://busterstransmission.com
>>
>> 704.847.5321
>> ------------------------------
>> *From:* trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> on behalf of pat
>> schulte via trnw2 <trnw2 at trnw.net>
>> *Sent:* Friday, November 7, 2025 11:25 AM
>>
>> *To:* Ryan D <ryan4r100 at gmail.com>; Technical Discussion Forum <
>> trnw2 at trnw.net>
>> *Subject:* Re: TRNW-2: 4R70W question.
>>
>> I can't tell you for sure as I have never tried, but I have seen some
>> units come in where the hole where the input sensor would go have a plug
>> from the factory. I "think" the output sensor hole is in the same place,
>> instead of reading the holes in the carrier it reads the park lugs, but the
>> lugs were made longer to be in the correct position.
>>
>> On Fri, Nov 7, 2025 at 8:15 AM Ryan D via trnw2 <trnw2 at trnw.net> wrote:
>>
>> Fred
>>
>> The input speed sensor won't be used. I'm thinking that one won't matter.
>> The output sensor could be a problem.  the shop is bringing me a core they
>> have today so I can look at it. Thank you guys for your thoughts on this.
>>
>>
>>
>> On Friday, November 7, 2025, Fred Whitaker via trnw2 <trnw2 at trnw.net>
>> wrote:
>>
>>   Guys, The sensor reads in a different spot in the case. Thats why you
>> have to pull a late one back out if you clock the center support snap ring
>> wrong. The out put sensors are different part #s as well!
>> ------------------------------
>> *From:* trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> on behalf of
>> jbockus--- via trnw2 <trnw2 at trnw.net>
>> *Sent:* Friday, November 7, 2025 6:56 AM
>> *To:* Ryan D <ryan4r100 at gmail.com>; Technical Discussion Forum <
>> trnw2 at trnw.net>
>> *Subject:* Re: TRNW-2: 4R70W question.
>>
>> I would say yes as long as you use the planetary and rear speed sensor
>> from your original 1-sensor case. I'm sure the sensors are the same
>> diameter and depth. And just plug the front sensor hole with a speed
>> sensor. That will throw someone off down the line, lol
>>
>> On 2025-11-06 10:49 pm, Ryan D via trnw2 wrote:
>> > Can I use a 2 speed sensor case in place of a one speed sensor case on
>> > a 4R70W? Both have 3 bolt starters.
>> >
>> > --
>> > Ryan
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>> > TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.google.com_maps_search_2825-2BWalnut-2BTerrace-2C-2BModesto-2C-2BCA-2B95355-3Fentry-3Dgmail-26source-3Dg&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=c6jxIA9MhUXf9jP-xBx3OLWWef9H-4aI6WgCQfVV0z-PPIJrukyj8CyB2DmKw4OT&s=sJ7Ey9SGkUjKtI5zQBgfwfoJ9FytT-W1kE9Pqm1ZSMY&e=>
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>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.google.com_maps_search_2825-2BWalnut-2BTerrace-2C-2BModesto-2C-2BCA-2B95355-3Fentry-3Dgmail-26source-3Dg&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=c6jxIA9MhUXf9jP-xBx3OLWWef9H-4aI6WgCQfVV0z-PPIJrukyj8CyB2DmKw4OT&s=sJ7Ey9SGkUjKtI5zQBgfwfoJ9FytT-W1kE9Pqm1ZSMY&e=>
>>
>>
>>
>> --
>> Ryan
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>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>> <https://www.google.com/maps/search/2825+Walnut+Terrace,+Modesto,+CA+95355?entry=gmail&source=g>
>>
>>
>>
>> --
>> Pat Schulte
>> AAMCO Transmissions
>> Temecula, Ca.
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>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
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>
>

-- 
Ryan
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