Tranny ??'s
Thanks!
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!
John
jowilker
66 F100s
In the still cool hours of the night,
you can hear chevys rusting away.
About Dana 60's - the ring gear diameter is actually 9.75". Gear ratios 3.07, 3.54, 3.73, and 4.10 use one carrier. 4.56 and steeper gears (4.88, 5.13, 5.38, 5.57, 5.87, etc...) use a different carrier that has the ring gear mounting surface closer to the pinion centerline. In other words, your trac-loc (carrier) from the 4.56 will not work with a set of higher (less reduction) gears. A ring gear spacer will not be the answer either, as the mounting surface is too close already.
If you have never changed a ring & pinion before, I suggest changing out the whole axle assembly, as a Dana is not the easiest axle to set up correctly (especially if you don't have a case spreader and pinion depth gauge).
A complete Dana 60 can be very cheap, as Ford built lots and lots of 3/4 ton trucks! Sometimes one can get a junked 70's truck for nearly free, and the rear axle will still be OK. OR, maybe you could trade your 4.56 with a trac-loc for a 3.54 or 3.73 with a trac-loc. Keep in mind that a 4.56 is much more valuable to pullers and off-roaders with big mud tires than a 3.54. 4.56 to 4.10 is only a 10% difference - the ratio of gear ratios. Negotiate the deal so you still end up with a trac-loc or a power-lok when everything's done.
By the way, an axle with a good trac-loc or power-lok will not allow you to rotate one brake drum when the other wheel is on the ground and the transmission is in neutral. It should take over 100 ft-lb to force its clutch plates in the differential to slip.
I'd stay away from the 8.8 axle, as I've seen several in 1/2 ton trucks with 8.8's and pinion bearing problems.
Regarding the transmission bolt patterns, I junked a 1987 F150 that had a three speed + overdrive that looked to be exactly the same as the Ford T-18/NP435 bolt pattern. The trans was junk as the previous owner ran it out of oil and stripped the input gear.
Good luck parts hunting,
Art
Art: I like the information you presented. I do think the 4.10 is a nice compromise for a 4wd truck. I have 4.10's in one 67 and the factory 4.56 in the other. It does make an appreciable difference. However, I have no problem getting the 4.56's up to cruising speed either.
On the other hand, I wouldn't waste my time going from 4.56 to 4.10 on a 2wd truck. The other options you present makes more sense. Andrew: I might suggest looking for a Camper Special model to harvest the rear axle from. Many of these had heavy duty brakes and some had locking rear axles. Most of the 1967 C/S models in the registry are equipped with 3.73's, but there was an available 3.54 locking Dana 60 that year.
Still again, Jowilkers advice might make some sense too (for those of you single guys out there). :-)
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I've done the math, and going from a 4.56 to a 4.10 would take me from 3212.6 RPM's to 2888.5 RPM's @65 MPH. I still would like to have comparible torque at the rear wheels to what I have now, but I'm looking to save a little mileage here and there. If I went from 4.56's to 4.10's, and put 35 inch tires instead of 31's, I would go from 3212.6 @65 to 2558.4. Those two, plus an overdrive tranny, and my mileage won't be so bad!
And NO KIDDING here, I shift into 4th at about 20MPH, and the engine isn't lugging. The sad part is, that when @20MPH in 4th, I can jump on the go pedal and bounce the tires until I let off!
Thanks for the info, I'll do the math for the other ratios and see where it gets me. Thanks guys!
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!
Ford Trucks for Ford Truck Enthusiasts
Thanks!
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!
The best source to look at to see if the tranny will fit your truck is Advance Adapters. I believe that their address is [link:www.advanceadapters.com|Advance Adapters] They make adapters for just about every engine and tranny. They would be a great resource for you.
Good Luck!
Matt
1974 F-250 4x4 Highboy
-Andrew
f250_64(No Email Addresses In Posts!), same for yahoo messenger
Nothing, and I mean nothing, stirs the soul, saying I'm a bad **** like lettin'em rip with a window shaking, fuel gulpin, carbon monoxide belchin, attention gettin, V-oh my LORD!-8!







