pinion and ratio 3,78 help
 

Hello
Today I wanted to change my new pinion 3.78.
the old is a 4.11 Pinion.
now the stock not fit.
the inside diameter of the bearing is too large.
Does anyone know exactly what I need to order for storage (which I have everything completely)

nice would be the item numbers of Macs

thank you

Re: pinion and ratio 3,78 help
 

the camp is installed the Timken 48-4621

Re: pinion and ratio 3,78 help
 

on the new pinion 3,78 stand 9602

Re: pinion and ratio 3,78 help
 

and how can I
Drive Pinion Bearing Double Race - Ford
Remove from the housing

Re: pinion and ratio 3,78 help
 

Some pics so we can identify what parts you got to start with and what new ones you got.
If its only the wrong bearings you got or is the ring and pinion different ?
A parts and a shopmanual aint a to bad thing ;)

Re: pinion and ratio 3,78 help
 

I can't answer your specific questions, but here is a technical post that was on the HAMB that may be of some help to you...
http://www.jalopyjournal.com/forum/t...o-axle.812569/

Re: pinion and ratio 3,78 help
 

here the picture

Re: pinion and ratio 3,78 help
 

Might also help to provide the year of rear end you are working on.

sorry here the right pic pinion and ratio 3,78 help
 

sorry 1 6/16 is correct!!!!!

Re: pinion and ratio 3,78 help
 

ford coupe 1936

Re: pinion and ratio 3,78 help
 

i ned this one

Re: pinion and ratio 3,78 help
 

The first one you have looks like something out of a quickchange rear has the shaft cut down for a supportbearing ??

Re: pinion and ratio 3,78 help
 

Looks like the pinion has been machined down to take the 33-34 bearing set .Also as flatheadmurre mentioned the end for the driveshaft has been machined for possibly a quickchange setup.You will have to find another R & P set as you should not mix pinions with ring gears.

Re: pinion and ratio 3,78 help
 

Also, that pinion gear in your second picture has six splines. Most likely, your '36 driveshaft, if stock, would have 10 splines on its pinion end, and you would need a 10 spline pinion.