Need help identifying this axle
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Junior User
Joined: Dec 2011
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Need help identifying this axle
Would like to get this right the first time.
If I'm going to keep this Tow Truck I'll need a taller set of gears in the rear axle. 55 mph Max is just not enough for me and if one of my boys happens to drive it they'll surely bring it back with a sucked valve.
This is from the door plate
F37YRP41683
W.O. 135
Color M
Model F374
Body 4B8
Trans A
Axle 28
Max Towing 10,000
Net HP 156
RPM 4000
DSO 72
It is completely original at this point so I tend to believe the valve cover engine information which is telling me I have a 360 cu.in. FE block
If anyone can steer me in the proper direction as to what gear set to order for the rear axle to increase the drivability of this beast I sure would appreciate it.
And no I don't plan on doing any towing with it as I have a 2014 Ram 2500 4x4 with the Cummins in it. Would be nice as a project for a nostalgic weekend driver and that is where my thoughts are leading with it
ON EDIT
Sorry guys - I should have used Google first. I see it is a Dana 70 with 4:56 gear set. Question still stands what should I do for a taller set of gears
If I'm going to keep this Tow Truck I'll need a taller set of gears in the rear axle. 55 mph Max is just not enough for me and if one of my boys happens to drive it they'll surely bring it back with a sucked valve.
This is from the door plate
F37YRP41683
W.O. 135
Color M
Model F374
Body 4B8
Trans A
Axle 28
Max Towing 10,000
Net HP 156
RPM 4000
DSO 72
It is completely original at this point so I tend to believe the valve cover engine information which is telling me I have a 360 cu.in. FE block
If anyone can steer me in the proper direction as to what gear set to order for the rear axle to increase the drivability of this beast I sure would appreciate it.
And no I don't plan on doing any towing with it as I have a 2014 Ram 2500 4x4 with the Cummins in it. Would be nice as a project for a nostalgic weekend driver and that is where my thoughts are leading with it
ON EDIT
Sorry guys - I should have used Google first. I see it is a Dana 70 with 4:56 gear set. Question still stands what should I do for a taller set of gears
Senior User
Joined: Aug 2012
Posts: 215
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Would like to get this right the first time.
If I'm going to keep this Tow Truck I'll need a taller set of gears in the rear axle. 55 mph Max is just not enough for me and if one of my boys happens to drive it they'll surely bring it back with a sucked valve.
This is from the door plate
F37YRP41683
W.O. 135
Color M
Model F374
Body 4B8
Trans A
Axle 28
Max Towing 10,000
Net HP 156
RPM 4000
DSO 72
It is completely original at this point so I tend to believe the valve cover engine information which is telling me I have a 360 cu.in. FE block
If anyone can steer me in the proper direction as to what gear set to order for the rear axle to increase the drivability of this beast I sure would appreciate it.
And no I don't plan on doing any towing with it as I have a 2014 Ram 2500 4x4 with the Cummins in it. Would be nice as a project for a nostalgic weekend driver and that is where my thoughts are leading with it
If I'm going to keep this Tow Truck I'll need a taller set of gears in the rear axle. 55 mph Max is just not enough for me and if one of my boys happens to drive it they'll surely bring it back with a sucked valve.
This is from the door plate
F37YRP41683
W.O. 135
Color M
Model F374
Body 4B8
Trans A
Axle 28
Max Towing 10,000
Net HP 156
RPM 4000
DSO 72
It is completely original at this point so I tend to believe the valve cover engine information which is telling me I have a 360 cu.in. FE block
If anyone can steer me in the proper direction as to what gear set to order for the rear axle to increase the drivability of this beast I sure would appreciate it.
And no I don't plan on doing any towing with it as I have a 2014 Ram 2500 4x4 with the Cummins in it. Would be nice as a project for a nostalgic weekend driver and that is where my thoughts are leading with it
Fleet Owner
Joined: Dec 2009
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From: NorCal
Thread Starter
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Junior User
Joined: Dec 2011
Posts: 53
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Thanks for the recommendation and the link. I'll be ordering the 3:54 set.
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Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Dana 70 wasn't available with 3.54 gears until 1983. 1961/82: 3.73 - 4.10 - 4.56 - 4.88 - 5.13
Dana 70 rear axle ID tag located under 2 of the bolts that retains the inspection cover to the housing, but...
Today, many of these tags are missing.
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Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
Same problemo with 3.73 & 4.10 gears, the case is different than with 4.56 - 4.88 - 5.13 gears.
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Junior User
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In order to install 3.54 gears in your F350's Dana 70, you will also need to change the differential case.
Dana 70 wasn't available with 3.54 gears until 1983. 1961/82: 3.73 - 4.10 - 4.56 - 4.88 - 5.13
Dana 70 rear axle ID tag located under 2 of the bolts that retains the inspection cover to the housing, but...
Today, many of these tags are missing.
Dana 70 wasn't available with 3.54 gears until 1983. 1961/82: 3.73 - 4.10 - 4.56 - 4.88 - 5.13
Dana 70 rear axle ID tag located under 2 of the bolts that retains the inspection cover to the housing, but...
Today, many of these tags are missing.
Thanks for the information Bill - you saved me quite a bit of frustration
It also appears that the 4:56 was not the smallest ratio for that rear end either
On Edit -
Yes I downloaded the manual from Dana's website and it shows 5 different versions of the Dana 70 axle with 3 different amounts of offset between axis of the ring and pinion
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Junior User
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Here is the information off the axle
On the right side - the date of manufacture is ( 5 16 202)
next to that according to Dana's parts manual is the part # 603201 14
along the left side where the ratio tag should be we found
02TA - HCA
603201-14
4.56
On the right side - the date of manufacture is ( 5 16 202)
next to that according to Dana's parts manual is the part # 603201 14
along the left side where the ratio tag should be we found
02TA - HCA
603201-14
4.56
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Ford: D2TA-HCA ~ Dana: 603201-14 .. Dana 70 Rear Axle / 4.56-1 / No Limited Slip / 7,400 lbs. Rear Axle Capacity.
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