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-   -   63-87 rack and pinion (https://67-72chevytrucks.com/vboard/showthread.php?t=465423)

robnolimit 06-07-2011 04:27 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Next we cleaned all the greese and grime off of the main crossmember. A piece of tape on the crossmember will make it easier to see the center line marks.

robnolimit 06-07-2011 04:30 PM

Re: 63-87 rack and pinion
 
2 Attachment(s)
Using the lower A-arm u-bolts as a guide, measure and mark the center of the crossmember-make 2 or 3 measurments and double check your center from both sides.

robnolimit 06-07-2011 04:45 PM

Re: 63-87 rack and pinion
 
3 Attachment(s)
Set the main mounting bracket onto the crossmember and line up the center hole with the center line mark. Locate the hole center and mark it.

robnolimit 06-07-2011 04:47 PM

Re: 63-87 rack and pinion
 
2 Attachment(s)
Center punch and drill with a 3/8 bit

robnolimit 06-07-2011 04:50 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Re-mount the main plate and bolt in place. Reach through the large port in the crossmember behind each spring pocket,

robnolimit 06-07-2011 04:57 PM

Re: 63-87 rack and pinion
 
2 Attachment(s)
Using the bracket as a guide drill the remaining 4 holes with a 3/8 drill bit.

robnolimit 06-07-2011 06:48 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Assemble the rack to the rack mount. Start with the drivers side rack mount bolt.

robnolimit 06-07-2011 06:50 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
For the passenger side use the two supplied u-bolts to mount the rack to the bracket.

robnolimit 06-07-2011 06:52 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Test fit the rack mounting bracket. Our rack hit the lip of the crossmember-mark the interferance.

robnolimit 06-07-2011 06:54 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Use a grinder to cut the lip down for clearance.

robnolimit 06-07-2011 06:57 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Next is the spindle modification using a 5/8 drill bit. Drill out the tie rod mounting hole. Start from the top side. Try to drill it straight down throught the original hole.

robnolimit 06-08-2011 05:59 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Next it's on to steering shafts and u-joints. This bearing mount comes in the kit and must be fitted into the frame rail.

robnolimit 06-08-2011 06:01 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Using the diagram provided you will need to drill two new holes in the chassis both 5/16". Then open up the factory hole to 7/8".

robnolimit 06-08-2011 06:04 PM

Re: 63-87 rack and pinion
 
2 Attachment(s)
This shows the holes drilled out. We also did a little die-grinding for steering shaft clearance. You'll see why next.

robnolimit 06-08-2011 06:06 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Here you can see the shaft support bearing in place.

robnolimit 06-08-2011 06:10 PM

Re: 63-87 rack and pinion
 
2 Attachment(s)
To get the Flaming River u-joint (supplied with the kit) to fit. The lower lip of the frame needs to be ground back about 3/8" to clear.

robnolimit 06-08-2011 06:13 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Before final assembly, we noticed that one of the u-bolts was hitting the crossmember, so the excess thread was cut off. You will need to check this.

SCOTI 06-10-2011 12:49 AM

Re: 63-87 rack and pinion
 
I haven't seen it asked so what are the chances of this working on larger 3/4-1 ton trucks too?

robnolimit 06-10-2011 04:31 PM

Re: 63-87 rack and pinion
 
Yes, it will, no differences in the install.

ebfabman 06-12-2011 02:49 PM

Re: 63-87 rack and pinion
 
robnolimit, how much road time has this kit got? I'm intrested but would like a little more feedback.

robnolimit 06-13-2011 11:26 AM

Re: 63-87 rack and pinion
 
Three trucks are road testing. 2500, 5000, and 9000 miles. We have puller the tie rod ends off of the two higher mileage trucks and tested them against new ends, and have not been able to find any measurable wear. We are using a dail indicator at .0001". So far there are no problems, and no wear issues. Thanks for the interest

robnolimit 06-14-2011 07:02 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Here is a shot of the rack mounted in place.

robnolimit 06-14-2011 07:04 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
Next we put the first u-joint onto the rack

robnolimit 06-14-2011 07:08 PM

Re: 63-87 rack and pinion
 
1 Attachment(s)
The supplied 3/4 DD shaft fits through the support bearing and into the u-joint.

robnolimit 06-14-2011 07:11 PM

Re: 63-87 rack and pinion
 
2 Attachment(s)
On the top side the second u-joint and the upper steering shaft go on.


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