Re: 489 vs 742

[Bill <Y1TopBanana73@xxxxxxxxx>]

I've honestly never rebuild an 8.75 pig before. The link I sent may be
of some use, as I'm sure the guys on here will be. Do a search for
8.75 rear info...you should some up w/ a ton.

Bill M
65 Coronet 500 'vert

On Nov 16, 2007 10:25 AM, Derrick Brown <63max426@xxxxxxxxx> wrote:
> HI Bill,
>
> Thanks for the info.
>
> I agree on the pinion shaft differences which means that bearing  and
> seal would be different, but the carrier bearings themselvse should
> be interchangeable?
>
> How can you tell the difference between the cone and clutch style
> suregrips?  Does the clutch type have a series of bolts going around
> it on its far right side, looking at it from the rear?
>
> as i understand it, you can rebuild the clutch style.  can you still
> get rebuild kits for the clutch style if you have that version?
>
>
>
> On Nov 16, 2007, at 10:16 AM, Bill wrote:
>
> > The shaft size and style for all 3 cases are different and not
> > interchangable. I've always remembered them by the letters, but I'm
> > pretty sure the "X" (741?) carrier is 1.375" shaft, "9" (742?) carrier
> > is 1.75"  shaft, and the "2" (489?) carrier is 1.875" shaft. Someone
> > please correct me if wrong.
> >
> > I just remembered this link too...
> > http://www.autohobbydigest.com/8_75.html
> >
> >
> > Bill M
> >
> > On Nov 16, 2007 9:32 AM, Derrick Brown <63max426@xxxxxxxxx> wrote:
> >> hi all,
> >>
> >> center section questions.
> >> ive got a completely rebuilt 489 cased suregrip (bearings , ring/
> >> pinion and suregrip) with new 3.55s in it.
> >>
> >> I want to swap to a steeper gear (likely 4.10, 3.91 minimum I think)
> >> since im  running a tall tire.
> >> I still have my 742 case.
> >> "IF" i want to get a new 4.10 ring/pinion for the 742 case ( i think
> >> all ill need is a shim kit for the pinion gear).  Will my large yoke
> >> and all the new bearings , suregrip and carrier(from 489)  all swap
> >> over to the older style case?
> >> It is my understanding that the only difference is the ring/pinion
> >> with shims (742)  versus ring/pinion crush collar (489)
> >>
> >> True or false, and what am I missing?
> >>
> >> thanks,
> >>
> >>
> >> Derrick Brown
> >> '63 Sport Fury, 4 speed
> >> derrickb@xxxxxxx
> >>
> >>
> >>
> >>
>
> Derrick Brown
> '63 Sport Fury, 4 speed
> derrickb@xxxxxxx
>
>
>
>