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1970 Bronco Build **AKA The Rainbow Bronco** UPDATED 1/17**

LockedupXJ

New Member
Joined
Feb 11, 2010
Messages
16
Loc.
Show Low
Hey Guys, I figured it was about time i started a build thread on the bronco me and my buddy are restoring, so here it goes.



First off this is the reason for the Rainbow name. We counted 9 different colors of paint. :eek:

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This Build started off in February of this year (2010). We searched high and low for a few months looking for the right deal to come up. Finally we found the Bronco we were looking for, it was cheap, had a "Fresh" 351W swapped in and we were told it was in great condition. So we loaded up for the drive to pick it up (about a 4 hour drive), we were told it was drivable and would make the trip back no problem so we didn't bring a trailer. When we get to the bronco from a distance it looked great, but ounce we got close and started looking at it we were a bit disappointed. Turns out there is no tailgate, it had doors but the handles were shaved and the window frames and windows were cut off, and it was generally in rough condition. After the initial shock we decided that we made the trip anyway so we might as well test drive it. We took it for a test drive, it started up and sounded pretty good and seemed to drive fine down the road. It did have 2 different ratio gears in the front than the rear so 4 wheel drive was not an option. After finishing the test drive we looked the whole thing over fairly well and came to the conclusion that it was a bit rough but it was workable.

With the deal sealed and everything taken care of now came the time to figure out how to get it home. Seeing it had no door windows, heater wasnt working, no windshield wipers, only having the auxillary fuel tank and the fact that it had started to snow we realized that our initial plan to drive it home wasnt going to work so well. Luckily there was a Uhaul store in the town so we just rented a car hauler and we were on the road. Heres the first picture of a time intensive restoration.

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Ounce we got it home we drove it into the driveway and started tearing it apart, seeing that mostly everything was missing this went fairly fast. When we started removing the fenders and really looking at stuff we noticed that there was some serious body work done on this thing, mainly in the form of Bondo. We started chipping away what was about 1" of bondo in some places and what was underneath was anything but pretty. First major thing we found was the rocker panels were completely gone, rusted out. The PO had done a very good job at covering all this instead of fixing it. He had riveted and rapped metal roofing over the bad rockers and used about a gallon of bondo per side to blend everything together.

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After tear down and all the suprises we could take was out of the way it was time to start the fun stuff. First the took it down to the bare frame and started cleaning from there. We pressure washed and degressed it and then hit it with wire wheels and sanding pads. The frame was in great shape and the only signs of rust where on the rear part where the bumper attaches.

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We then started on everything else

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After everything was clean and grease free it was time for paint prep, then paint


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After everything was painted we started at the axles and went up. The front axle had 4.10 gears while the rear 9" had 3.0. We are planning on running 35's when its all said and done so we went ahead and put matching 4.10's in the 9". We also went through both axles and replaced all seals, bushings, bearings, etc. Also we added a Disk brake conversion on the D30. Next was the drivetrain components. We had our doubts that the 351W was actually a fresh motor so we went ahead and pulled the heads to check it out. Sure enough it wasnt a "Fresh" motor but instead a 150,000 mile motor. We pulled to motor, tore it down and took it to the machine shop hoping for the best. Turns out it was re-ringed but not very well. Three of the eight pistons had broken compression rings which left nice gouges in the cylinders, its amazing it never smoked when we ran it. We ended up having to bore it to the max of .060 to get them out. We went ahead and had the heads remaned as well. We put it back together using basically stock components other than a nice Low end cam and an Edelbrock intake with Edelbrock carb. Also we went through the transmission and Dana 20 and replaced all the sincros, bearings, seals etc. It had brand new drivelines on it so that was a plus, I can only imagine why that was %).

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NY-Bronco

Resident Dipstick
Joined
Aug 4, 2010
Messages
2,336
Loc.
Weehawken, NJ
Wow! Cant imagine how I would react finding all that bondo :eek: Nothing worse than a dishonest PO. Good thing you guys know what you are doing. Its looking real good! Keep it up man!!
 

broncoitis

Bronco Guru
Joined
Jul 23, 2010
Messages
4,449
Yes sir the best thing you can bring with you looking at these rigs sometimes is a frig magnet that helps find the Bondo and get on your back and get under the truck! They hide it on the outside but usually don't worry about the underside because nobody goes that far! I learned this the HARD way with another truck! :-[
 

broncoitis

Bronco Guru
Joined
Jul 23, 2010
Messages
4,449
Lockedup XJ,

Doing a great job on the buildup so far! Keep up the good work! ;D
 

Scoop

Contributor
Have Bronco, Will Travel
Joined
Feb 1, 2006
Messages
10,737
Loc.
Cuchara, CO
First off this is the reason for the Rainbow name. We counted 9 different colors of paint. :eek:

OK - you had me worried there for a sec . . .

Nice progress! It looked pretty good before you tore into it - just goes to show that paint can hide a lot.
 

bax

Contributor
Old Member
Joined
Aug 22, 2005
Messages
14,497
It looks good. Do you want the water-pump inlet on the drivers side?
 

ogr

Full Member
Joined
Feb 8, 2009
Messages
223
Loc.
Vail
Did you buy the rig in Prescott? One like yours was sitting off Hwy 69 between Prescott Valley and Prescott for a very long time. There was about 1" of red paint over the front end....no sanding or prep just paint laid on really heavy. Alot of missing pieces too. Looks like you are doing it right though, nice to have the room and a buddy to handle the resurrection.
 

tasker

Contributor
all knowing of nothing
Joined
Jun 2, 2006
Messages
21,008
Loc.
NH
LOOKS like it's coming out great, would love to have the time, talent and space to do that....
 

camomog

Full Member
Joined
Sep 10, 2008
Messages
254
Loc.
Reno, Nv.
Sucks when you find that stuff, but looks like you may have suspected some of it. Doing a nice job keep it up.
 
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LockedupXJ

New Member
Joined
Feb 11, 2010
Messages
16
Loc.
Show Low
Did you buy the rig in Prescott? One like yours was sitting off Hwy 69 between Prescott Valley and Prescott for a very long time. There was about 1" of red paint over the front end....no sanding or prep just paint laid on really heavy. Alot of missing pieces too. Looks like you are doing it right though, nice to have the room and a buddy to handle the resurrection.


Actually we did, good eye its a small world.





Sucks when you find that stuff, but looks like you may have suspected some of it. Doing a nice job keep it up.


We did exspect most of what we found but the rockers were a suprise, it even looked good from underneath.





Heres the rest of the progress that I didnt post earlier. This should bring it close to up to date.




After finding all the stuff on the original body we starting looking around for a donor. We found a tub and frame from a friend of ours that was in better shape than the one we had. The only problem with it was the passenger side looked like this

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After figuring the work and parts needed to fix the original and to fix the donor we chose the donor. We ordered all the sheetmetal and started the surgery.

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Next we started stripping the 9 coats of paint

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After getting a majority of the paint off there was still some in the nooks and crannys so we decided that some sandblasting was in order. I forgot to get pictures of that and the rest we have done. Right now we are doing body work on it and almost ready for paint so i will get more pictures tommorow.
 
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sprdv1

Contributor
REBEL
Joined
Mar 8, 2007
Messages
81,962
Great project & progress...! Look forward to the progress.
 

Mill KNOB

Bronco Guru
Joined
Jun 25, 2007
Messages
1,684
Loc.
Rock Hill, SC
Looking great. Looks like you are dong it the right way taking it from ground up. Keep it up and you will have one heck of a nice Bronco. Keep the Pictures coming.
 

TTTGOWYO

Tyler T. - EB Obsessed
Joined
Sep 3, 2007
Messages
2,151
Loc.
Louisville
Great work, this thing is going to be sweet. I like the red and black theme on the engine. Looks nasty..
 

dave vh

Full Member
Joined
Sep 27, 2009
Messages
245
Loc.
Lock haven
looks like that donor body is in real nice shape . you guys are making great progress . will be a real keeper when done
 
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LockedupXJ

New Member
Joined
Feb 11, 2010
Messages
16
Loc.
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We have now begun the downhill slide of this project, there is still a lot left but at least the body work and paint is done, that was the biggest challenge we faced on this whole thing simply because there was SO much of it :p. We finished all the whole body including the repaired areas off with 80 grit then sprayed 3 coats of a high base filler primer and wet blocked that down with 220 then 400. Here's some pics, we will be spraying the interior with Raptor U-POL bedliner on Wednesday so more pics are to come.


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