57fordsforever.com

Technical => General Tech Discussion => Topic started by: rmk57 on 2013-02-18 16:32

Title: driveshaft bolt in ?
Post by: rmk57 on 2013-02-18 16:32
I have a 460/ C-6 combo and updated the rear to a 31-spline locker. It looks to me like the original driveshaft could be the weak link. Is there anything out there that directly bolts in ? Shortening would be easiest and my other option I guess.
Title: Re: driveshaft bolt in ?
Post by: Ford Blue blood on 2013-02-18 16:43
U-joints are the first weak link, need to beef up the input yoke on the rear, the output yoke on the tranny and all of this is assuming you have the suspension and tires set up to hook when the light turns green...
Title: Re: driveshaft bolt in ?
Post by: rmk57 on 2013-02-18 17:29
I have the Daytona pinion support and the short pinion yoke which uses the 1350 u joint.  Browsing through e-bay a newer crown vic uses an aluminum driveshaft, might be worth checking out.
Title: Re: driveshaft bolt in ?
Post by: rmk57 on 2013-02-18 19:56
Measured my stock 57 driveshaft and got 55", so I did a little research on Crown Vic driveshafts and they measure out at 55.5 from centre to centre front and rear u joints. They are made of aluminum matrix and balanced to 130 mph according to the P71 website. They use 1330 u joints so I could use a 1330/1350 hybrid and be good to go.....I hope.
Title: Re: driveshaft bolt in ?
Post by: JPotter57 on 2013-02-18 22:28
I used a crown vic shaft in my last 57, and have one for this one as well...They work out great, lighter rotational mass too..
Title: Re: driveshaft bolt in ?
Post by: rmk57 on 2013-02-18 22:56
Well, good to know I'm on the right track!
Title: Re: driveshaft bolt in ?
Post by: wildhog on 2013-02-18 23:04
I got a Crown Vic. shaft out of an interceptor and it had Police lettered on the drive shaft, The guy at the drive shaft co. asked me where I got it. I told him The Donut Shop!!!!
Title: Re: driveshaft bolt in ?
Post by: rmk57 on 2013-02-19 08:08
The ones I've seen pictures of had "police" stamped on them to. Maybe the civilian crown vic's, Marquis, got the steel one.
Title: Re: driveshaft bolt in ?
Post by: JPotter57 on 2013-02-24 20:11
nope..all of them got aluminum...Mine actually came from a Lincoln Town Car..
Title: Re: driveshaft bolt in ?
Post by: Hoosier Hurricane on 2013-02-25 06:09
You guys with the 55" driveshafts must all have Custom and Custom 300 cars.  I measurred my Fairlane yesterday, it is 57".  Makes sense, 2" difference in wheelbase between the series.

John
Title: Re: driveshaft bolt in ?
Post by: Jeff Norwell on 2013-04-22 07:35
Quote from: wildhog on 2013-02-18 23:04
I got a Crown Vic. shaft out of an interceptor and it had Police lettered on the drive shaft, The guy at the drive shaft co. asked me where I got it. I told him The Donut Shop!!!!


Ha ha ha.....That's Classic Tom.....
I was wondering what my driveshaft length  is going to be/... since the 390 and toploader are factory FOMOCO units.... Should I pic up one of these Crown Vic/Lincoln Town Car driveshafts at this point?..... or should I actually wait until I have the Engine / Tranny combo mocked up?
Dumb Newb Question #48.
Title: Re: driveshaft bolt in ?
Post by: Jeff Norwell on 2013-04-22 07:37
And also.. what years of Crown Vic/Lincolns are you fellas talking about?
Title: Re: driveshaft bolt in ?
Post by: JPotter57 on 2013-04-22 18:36
Jeff...try 88-up to probably 94 or so.  Later may work too but I haven't tried them myself.
Title: Re: driveshaft bolt in ?
Post by: Jeff Norwell on 2013-04-22 19:37
I will hit a few local wreckers and see what is around..... seems our local wreckers have been crushing a lot round here
Title: Re: driveshaft bolt in ?
Post by: wv 57s forever on 2013-04-22 19:56




              whats a good price for the drive shaft. :006:
Title: Re: driveshaft bolt in ?
Post by: rmk57 on 2013-04-22 20:34
I live Vancouver where we pay around 3 times more for anything in the world, so here probably about $150. I'm sure down south in a wrecking yard they could be had for $50.

Randy
Title: Re: driveshaft bolt in ?
Post by: F570RD on 2013-04-23 08:24
Quote from: wv 57s forever on 2013-04-22 19:56



              whats a good price for the drive shaft. :006:

Free has always been the best price. I spent over $700 for my Mark Williams shaft.4 inch,billitt front yoke and 1350 joints.Glad you guys are finding Ford stuff that fits.