perf-list-digest Thursday, November 5 1998 Volume 01 : Number 138

Ford Truck Enthusiasts - Performance
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In this issue:

Re: FTE Perf - NP435 install, 78 bronco
FTE Perf - Nominate Ford Truck Enthusiasts?



Date: Wed, 4 Nov 1998 09:41:06 +0000
From: "Gary, 78 BBB"
Subject: Re: FTE Perf - NP435 install, 78 bronco

From: "Dave Resch"
Date sent: Tue, 3 Nov 1998 15:11:42 -0700
Subject: Re: FTE Perf - NP435 install, 78 bronco

> Maybe the previous owner lost some bell housing to engine block bolts,
> too. When I did the clutch last year on my 351M/NP435 truck, seems like
> there were 6 bolts holding it together.

The C-6 has an integral bell housing and is very strong, the NP435 has 4
bolts holding the bell housing on the tranny, 7/16" is all they are and no
dowel pins either. The bell housing to the engine is the same as the C-6 and
all bolts were in place and tight but all 4 of the tranny to bell housing bolts
were loose which may explain some of the vibration :-)

Here's what I found in this project:

Pilot bushing totally toast, like 1/8" clearance
Input and output shafts bearings toast, really rough
third gear syncro shot (why I took it out)
all 4 bolts holding the tranny to bell housing loose, very loose
Throw out bearing appeared to still be satisfactory
Clutch had been chattering a lot but looked fairly good except for
discoloration. Slight wavyness to flywheel surface but smooth, not scored
and disk looked like it still had some life left in it but it was glazed.

Here's what I replaced:

Pilot bushing with bearing
throwout bearing
resurfaced flywheel
new pressure plate
new disk

Second gear syncros in new tranny are toast but third is good and fourth as
well so I'm a little dissapointed but was planning to rebuild it before putting it
in so I guess I'm still Ok, I got what I paid for so Rick's off the hook :-)
Should last till summer, just can't do Hollywood stops anymore :-( Bearings
are nice and smooth and input shaft is in much better shape than the old one.

With the xfer case out I could get a handle on the shape of the gears and
bearings in it, feels pretty good, better than my spare for sure :-)

I don't like the clutch. It's smooth and does the job but the transition range
is way shorter than before and full grab happens half way out. I like a fast or
early grab, right off the floor. I'll miss too many shifts with this stupid half
way house thing going on. Seems a little less strong than the old one too, I
was hoping for "stronger" :-(

While it wasn't a total success I found out a lot about the truck and now see
what my work is in the floor and got a lot of fasteners anti-seized in the
process. I had a modicum of success with the brakes too, I'll post that
separately :-)

Michigan Pot Hole Jumpin Bronco lover, -- Gary --
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Date: Wed, 04 Nov 1998 21:53:23 -0500
From: Ken Payne
Subject: FTE Perf - Nominate Ford Truck Enthusiasts?

Car Lounge is taking nominations for the #1 automotive site for
Winter 98. Due to the support from list members in the Spring,
Ford Truck Enthusiasts won 1st place for the Summer 98 award
and 10th place for Autumn 98 award. If you would like to
nominate Ford Truck Enthusiasts, please visit:

Ken Payne
CoAdmin, Ford Truck Enthusiasts

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End of perf-list-digest V1 #138

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