'65 F-350 Spindle Bushing Reamer 3109-81-T

[OilyRascal]

I'm working on my 1965 Ford F-350; reworking the king pin and spindle bushings. Part of the procedure is line reaming the new bronze bushings to required size with tool 3109-81-T (a spindle bushing reamer).

I've been unable to find a 3109-81-T reamer, and was hoping to use one of the Starrett reamers I own (praying it is long enough to stay parallel in both bushings). I'm having a problem going that route because I'm unable to find reference to the specification behind "required size" for the bushings (reamed).

Is there a way to get detail on the size of said tool; 3109-81-T? OR, does someone know how to otherwise determine the spec. for this bushing so that I can find the proper tool? It's been suggested I "throw a dart at it" by sizing the king pin and giving that a couple thousandths. I'd rather not go this approach if I can avoid it.

Other ideas?

Please PM if you *happen* to have the reamer tool 3109-81-T that you would like to sell.

Many thanks in advance!

[36truck]

Way back in the day when I worked in an old time parts house they had a bench reamer. Some of the better shops in town would come in & ream bushings pressed in to the spindles. They would match each pin to the spindle. I believe it was a really close fit so the pin would just go in with a small amount of drag.

[Toyz]

I'm working on my 1965 Ford F-350; reworking the king pin and spindle bushings. Part of the procedure is line reaming the new bronze bushings to required size with tool 3109-81-T (a spindle bushing reamer).

I've been unable to find a 3109-81-T reamer, and was hoping to use one of the Starrett reamers I own (praying it is long enough to stay parallel in both bushings). I'm having a problem going that route because I'm unable to find reference to the specification behind "required size" for the bushings (reamed).

Is there a way to get detail on the size of said tool; 3109-81-T? OR, does someone know how to otherwise determine the spec. for this bushing so that I can find the proper tool? It's been suggested I "throw a dart at it" by sizing the king pin and giving that a couple thousandths. I'd rather not go this approach if I can avoid it.

Other ideas?

Please PM if you *happen* to have the reamer tool 3109-81-T that you would like to sell.

Many thanks in advance!

I don't think I've ever seen a listed tolerance. Like Tom, I've always simply looked for "slight drag". Is yours a 3800 lb. axle? If so, it is probably an .920" pin. If you have an adjustable reamer that long, i'd shoot for .9205" to .9210". My adjustable reamers are not that long, but probably could be used in the manner of the OEM reamer by making a guide mandrel. I'll take a look for the original later this week (I worked on a bunch of fleet F250/F350's in a previous life), if you have not found a solution by then.
Edit, Found a stated tolerance of .001" to .003" over, that 3109 number is not coming up, The various truck reamers seem to be "3110" Ford part numbers I believe you can get "extension guides " for reamers for such purposes. Looks as if a 59/64" reamer with extension would hit the finished dimension after using an adjustable reamer to get close.
Paul

[OilyRascal]

I appreciate the feedback. You made me start thinking, snagged me for a moment, which is good.

I verified the tool reference. The reference, and part number, comes from the Ford Shop Manual for a '65 (volume one). It states 3109TB for removal/driving of bronze bushing, and 3109-81-T for reaming.

I *thought* I had 3k lb axles in the front, but now that you ask I can't recall why I thought that. Not sure if it was something I pulled from the data tag or if I dreamed that up. I'd sure like to know how to confirm the rating now that I'm tripping on it.

I have a "new" king pin/bushing set. I suppose I could mic. the king pin and go from there. Doesn't sound like tool made for job is going to pop up anytime soon, and I need it back on the road.

Thank you, Paul, for taking the time to do some lookups. If you don't mind, where did you find reference to the .001" to .003" over?

[ICEMAN6166]

when we did the kingpins on my friends louisville (cant remember if it was 12 or 16K front end) we made them so the pin just slid in =+.001.
idea is to get the bushing just big enough for the pin to fit and turn easily with no slop.

[Toyz]

Actually, the reference was found with an old set of bushings of unknown origin. The outer box was missing, the directions barely readable. Speedway Motors list .001"-.0015" for their 57/64 F100 applications, which should be the .860" pins. Online "how-to" guides reference the same clearances , if any are listed, but are obviously generic.
If you can tell me the axle casting number, I should be able to tell you what the rating is.

Paul

[ICEMAN6166]

I *thought* I had 3k lb axles in the front, but now that you ask I can't recall why I thought that. Not sure if it was something I pulled from the data tag or if I dreamed that up. I'd sure like to know how to confirm the rating now that I'm tripping on it

according to the 65 f350 brochure there is only 1 choice , 3800 lb.

[Toyz]

Ah, that helps with something I was in doubt about! I had been told several times that the "high roof" was not found on the later F350 slicks; the ad appears to indicate it in fact was standard. I've also been told that some were equipped with the "sweep" instrument cluster. I've pretty well discounted that also.
Then there's the matter of the C/L"62 F250 4x4 you posted. Trim and grille makes it appear to be a '63. I've experienced vehicles which appeared to be '62's which had '63 serial numbers, and thus, production dates, but never the opposite. These were MA Bell DSO vehicles , with the exception of several Humble Oil vehicles, also DSO.
Sorry 'bout the hijack!
Paul

[ICEMAN6166]

Then there's the matter of the C/L"62 F250 4x4 you posted. Trim and grille makes it appear to be a '63. I've experienced vehicles which appeared to be '62's which had '63 serial numbers, and thus, production dates, but never the opposite. These were MA Bell DSO vehicles , with the exception of several Humble Oil vehicles, also DSO.
Sorry 'bout the hijack!

i would bet the 4x4 is a 63 by vin and the fd ordered it in 62, state titled it as 62 or sellers are confused.

lots of military especially bigger trucks used 61 grilles in 62, like that 4x4 dumptruck f700 i had.


now back to our original topic

[Toyz]

I had assumed your 350 was 2wd; there was a 3k axle used in the F100/F250 4wd, although it's rare in even the 250, and thus doubtful in a 350. The F250 was an 8 lug wheel, the F350 4x4's I'm aware of were either Napco or Marmon -Herrington conversions utilizing the F350 6 lug arrangement; I've never seem a factory 8 lug 4wd dually slick, and doubt it would have a 3k axle, but can't verify that. The 3k's were Dana 44's, the 4wd 350's were usually Dana 60's with the 6lug wheels.
I don't think there were any Ford-produced dually F350 4wd's in 65.
BTW, the 3109 part numbers are probably correct, the 3109/10 #'s both referred to spindle components, which included specialty tools.
Paul

[ICEMAN6166]

I had assumed your 350 was 2wd; there was a 3k axle used in the F100/F250 4wd, although it's rare in even the 250, and thus doubtful in a 350. The F250 was an 8 lug wheel, the F350 4x4's I'm aware of were either Napco or Marmon -Herrington conversions utilizing the F350 6 lug arrangement; I've never seem a factory 8 lug 4wd dually slick, and doubt it would have a 3k axle, but can't verify that. The 3k's were Dana 44's, the 4wd 350's were usually Dana 60's with the 6lug wheels.
I don't think there were any Ford-produced dually F350 4wd's in 65.
BTW, the 3109 part numbers are probably correct, the 3109/10 #'s both referred to spindle components, which included specialty tools.
Paul

as far as i know there were no slick f350 factory 4x4s

the 65 wrecker in my pic is on a 72 f250 4x4 frame, with a 69 d60 dually rear and a 3500 lb d44 front

my 66 f250 4x4 has the 3000 lb d44 front end

f100 hub


f250 3500 lb hub


f250 3000 lb has tapered not straight hub kind of hard to see in this pic


none of these axles have kingpins they all use knuckle bearings

[Toyz]

Totally overlooked the no kingpins situation
Thanks,
Paul