05-24-2021, 08:02 AM | #281 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,440
|
Re: F150 tranny with overdrive
Second gear for removal and reinstallation. All of the gear change grooves for each synchronizer and reverse gear have to be properly aligned with the shift forks for an easier stab at reintallation.
|
05-25-2021, 04:57 AM | #282 |
Senior Member
Join Date: May 2010
Location: Denville NJ
Posts: 964
|
Re: F150 tranny with overdrive
That worked ,thanks
__________________
Model A Ford Club of New Jersey http://www.mafcnj.org Model A Pick Up Owners and Enthusiasts https://www.fordbarn.com/forum/group.php?groupid=5 |
Sponsored Links (Register now to hide all advertisements) |
|
07-28-2022, 04:07 PM | #283 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
JRN1967
Any information on the SRODS you need to salvage the parts for the build. Trans codes? |
08-12-2022, 11:09 AM | #284 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
I was going to send a PM, but I didn't have enough posts
Hello, Thanks for posting the information on the "Goldilocks" combination. Starting the salvager hunt for the SROD components you have listed. The question I have is does it matter which RTS I start with? B, C or D ratios? Sorry if the answer is obvious, but I could see where it made a difference? Had been follow the RTS for a model for a number of years but until this "Goldilocks" combo was I identified I was heading a different route. Thanks in advance!! Richard |
08-12-2022, 11:21 AM | #285 |
Senior Member
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,356
|
Re: F150 tranny with overdrive
I think he was getting his info from here:
https://www.fordgarage.com/pages/TremecT170FT.htm |
08-12-2022, 06:19 PM | #286 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,440
|
Re: F150 tranny with overdrive
Sponsored Links (Register now to hide all advertisements)
This article has info. https://www.f150hub.com/trans/t170-smod-srod-tod.html The TOD has a top shift feature the others don't have. The SROD is Side Rail overdrive and the SMOD has three side mounted shift rails and a cast iron case. Last edited by rotorwrench; 08-14-2022 at 09:25 AM. |
08-14-2022, 07:58 AM | #287 |
Junior Member
Join Date: Jul 2022
Posts: 19
|
Re: F150 tranny with overdrive
Hey all
I know this is a very old post but has anyone ever considered this: A model a stock 3 speed transmission has the following gear ratios 3.12 1st, 1.85 2nd, 1.0 3rd An iron cased 3+1 overdrive has the following 3.29 1st, 1.84 2nd, 1.00 3rd, .81 4th, The gears in 1-3 of both transmissions are very similar If a shifter can be made to work would this be a good choice? I only ask because the iron units can be had for less than 400 dollars in most cases and parts are still available What are your thoughts? This is just food for thought and making conversation Thanks in advance Dave |
08-16-2022, 08:53 AM | #288 | |
Senior Member
Join Date: Jun 2010
Location: Highland, CA
Posts: 207
|
Re: F150 tranny with overdrive
Quote:
The Jeep T176 top cover & shift forks can be fitted to an iron case O.D. toploader with minimal modification. A notch has to be machined or ground into the gasket surface of the case to allow clearance for installing top cover with shift forks. https://www.jalopyjournal.com/forum/...ow-to.1139513/ There is more info out there on the web. I found this one with just a quick look. Tom |
|
08-16-2022, 03:52 PM | #289 |
Junior Member
Join Date: Jul 2022
Posts: 19
|
Re: F150 tranny with overdrive
Tom
Thank you for the reply! I need to get inside of a T170 and see “how” they manage to make the shifter work I know about the T176 and adapting to a traditional Toploader My only concern was the Overdriven gear being in place of the 3rd gear in a Toploader If we use a T176 tower it will give us an odd shift pattern I think the T170 did something different with the shifter as the gear layout is the same My thoughts are primarily that the gear ratios in that specific transmission is about PERFECT for our cars Thank you for responding I really appreciate the input Dave |
08-16-2022, 05:50 PM | #290 |
Senior Member
Join Date: Jun 2010
Location: Highland, CA
Posts: 207
|
Re: F150 tranny with overdrive
Dave,
You are correct about the T170 internals. There is a small toggle lever that pivots in the bulge on the left side of the transmission case. This reverses the operation of the shift fork so that 1:1 (straight through) is 3rd gear and O.D. is 4th gear. Again, you are correct that with a T176 shift tower on an iron case Toploader the shift pattern is goofy but it works. Tom |
08-16-2022, 08:03 PM | #291 |
Junior Member
Join Date: Jul 2022
Posts: 19
|
Re: F150 tranny with overdrive
Tom
Thanks for the pictures!! “COULD” the internals from the iron cased trans be made to work in the T-170? I have a line on. D ratio but that’s the worst one for our combo Just thinking Dave |
08-17-2022, 02:47 PM | #292 |
Senior Member
Join Date: Jun 2010
Location: Highland, CA
Posts: 207
|
Re: F150 tranny with overdrive
Dave,
It is possible but not all parts are interchangeable. In fact, I have successfully created a "Goldilocks Ratio" T170 as mentioned here, https://www.fordgarage.com/pages/TremecT170FT.htm The parts to do this are very hard to come by. So, it is possible to put iron case gears into the aluminum case T170 but have to be careful of bearing sizes/journal sizes as not all will interchange. If you are looking to change a D ratio T170 to a B ratio T170 I may have a gearset available. I have 2 T170s and will be changing both to the Goldilocks ratio so I will have B ratio gearsets available. It's been a while since I've looked at them so I'd have to inspect them for condition. Tom |
08-17-2022, 08:08 PM | #293 |
Junior Member
Join Date: Jul 2022
Posts: 19
|
Re: F150 tranny with overdrive
Tom do you care to share how you did or better yet a parts list?
|
08-18-2022, 11:28 AM | #294 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
Hello,
Looking at the Ford Garage page on this topic, I am assume that the "Goldilocks Ratio" parts only come from T170F RUG 3+1 (SMOD) iron case transmission and the 351w trucks? Am I correct? If so, anyone know the code on those transmissions? Thanks in advance. Richard |
08-22-2022, 09:07 AM | #295 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
Following up. Any thoughts on the transmissions to retrieve that Goldilocks parts?
|
08-24-2022, 09:22 AM | #296 | ||
Senior Member
Join Date: Jun 2010
Location: Highland, CA
Posts: 207
|
Re: F150 tranny with overdrive
Quote:
Quote:
Here's a list of the parts needed. Vince (Ford Garage, https://www.fordgarage.com/pages/TremecT170FT.htm) has also done a great job tabulating the parts needed but here's a list, taken from the MG_Trans cataloge.
You'll notice from the list that the 3 gears needed (input shaft, 4th OD, and Cluster) all have PNs that start with D8UZ. This, Ford PN, breaks down to a 1978 Ford Econoline van. So that's the trans (or parts for) needed to create the Goldilocks ratio. I listed two output shafts, both are T170 TRUCK shafts. The 4x4 shaft is ideal but the 2WD shaft will work as well. I know for a fact that many of the car output shafts have too small a diameter, behind the rear bearing, to be splined for the Model A u-joint yoke. This Gentleman, named Merlin, has some of these parts. He's a real nice guy to deal with but he's not cheap. Also, these parts show up on eBay from time to time.https://mmerlinn.com/ How many 1978 Ford Econoline vans were made with a 4-speed O.D.? Probably not many. So this is kind of a rare beast but the parts are out there. Tom |
||
08-24-2022, 12:24 PM | #297 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
Thanks much!
|
08-24-2022, 12:51 PM | #298 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
Sorry one more question (for now). What is the advantage of the 4WD mainshaft. The base RTS transmission I am working with is a 2WD.
|
08-24-2022, 02:58 PM | #299 | |
Senior Member
Join Date: Jun 2010
Location: Highland, CA
Posts: 207
|
Re: F150 tranny with overdrive
Quote:
See attached pics. The shaft on the far left (in the group of 4) is an iron case car transmission shaft and the diameter is too small to spline for Model A u-joint. The two middle shafts are 4x4 shafts. Notice the absence of the speedometer gear journal. The shaft on the right is 2WD and has the speedometer gear journal. The small hole in the speedometer journal ends up leaving a small divet in the splines for the u-joint. Also, the diameter of the shaft just beyond the speedometer journal nominal for splining. Since the shafts are case hardened this makes it a little harder to machine in this area. Doable and completely usable but the 4x4 shaft is a little easier. Tom |
|
08-25-2022, 07:34 AM | #300 |
Junior Member
Join Date: Aug 2012
Posts: 25
|
Re: F150 tranny with overdrive
MALAK,
Thank you for willingness to share your knowledge that I am sure hook a lot of time and financial investment to develop! Richard |
|
|
Sponsored Links (Register now to hide all advertisements) |
|