So I scored this third member for free! Was told the bearings need to be replaced. It's 31 spline and I think has 3.50 gears. Anyone know what it's out of? Lastly would it fit my stock 9" in my 64 F100? Not sure what spline my axles are. Posted from the TJJ App for iPhone & iPad
For starters, count the number of teeth on the pinion gear and ring gear... Let us know what ya get!!
Can't tell by the pics, but if the ring gear bolts are recessed, you have a trak loc. 31 Spline axles were not in the early trucks, but that is a great score. Eric
Also measure across the width of the U-joint . There are wide and narrow ones, most are wide, but best to be sure. U-joints are available for both.
I see a 1035 stamped on the ring gear... So, it just might be a 3.50 gear set... 35 teeth on the ring gear divided 10 teeth on the pinion gives you 3.50....
I see D2TW on the ring gear, so it's probably from 1972 or later. The yokes are also made in different lengths. You might need to change it to fit yours, or you may not. You can look at them and compare. What gears do you have in the truck now?
The 1964 F-100's were 28 spline axles The new center section will fit ... but the axles will not. Either go to 31 spline axles ( not so easy to find ) or change over to 28 spline side gears ( fairly easy ) .
I believe 2.90 in the truck now. What do you think it came out of ? Posted from the TJJ App for iPhone & iPad
It's hard to say....probably from a pickup or bronco. It doesn't really matter what it came from, does it?
With a 3.50 gear, 31 spline and after '72 I would say a pickup or a van (early broncos were 28 spline up to '77 I think).
I can tell by the pics that is a Traction Lock, nice find! To put that in your 64 F100 you would have to have custom 31 spline axles made or get the rarely found 31 spline 1968-1972 axles AND convert to 1968-1979 brakes (brake backing plates, drums, shoes and hardware).
While you have it apart to change the side gears to 28 spline to match your axles you should put a new set of clutches in the traction lock.
I was told by the guy I got it from the bearings were bad. I don't no a thing about these units never tore one apart. Any info would be good. Posted from the TJJ App for iPhone & iPad
Looks like a 41 10 on the ring gear. Which very well could be the tooth count since it's almost always on there some where. That would make it a 4.10
These sites will keep you busy for a little while... http://www.kevinstang.com/Ninecase.htm http://www.ford-trucks.com/article/idx/9/065/article/Ford_9_Inch_RebuildGear_Setup.html
What do you all think it be worth if for sale. Guy who gave it to me was a friend and I'd like to offer him something / trade for it. Posted from the TJJ App for iPhone & iPad
In builder shape....I'd throw him something in the 80 to Hunnert buck range.... I also gotta trac lock for free awhile ago and seeing as I know nothing about 8.8" (I know yours is a 9"....)rear ends and I was freshening everything in my truck up I had a well known driveline shop in my area crack it open, swap in the trac lock, change all the bearings and clutches and only charged me two bills for the labor and parts (which I did not think that was too shabby).... Now a 9"....those are relatively easy....read up on it and do it yourself.... Don't forget you need the trac lock additive if you wanna keep it alive (friction modifier p/n 43161)
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