Rex , White (OJ bronco) build!

Trex · Post by **Trex** » Sat Jul 08, 2017 8:40 am

Hello

I'm building a 1992 Bronco pre-runner (in a past life I had a fully built 91 F-150, but I rolled it...)

Bought his off a guy in LA w/ (don't ask paid to much)
- Stroked 302, Comp cam, scorpion roller rockers, edelbrock 3881 intake, Y-pipe, scat bottom end, KN cold air intake, AL heads
- Also drilled the front/rear for 5/8 studs and mounted my freshly powder coated methods with 35 Bfgs
- I also built this bumper with a swing down tire carrier (not done yet)

: 1.jpg (823.55 KiB) Viewed 8402 times

: 2.jpg (652.04 KiB) Viewed 8402 times

: 4.jpg (291.25 KiB) Viewed 8402 times

: 3.jpg (566.27 KiB) Viewed 8402 times

Bajaluv · Post by **Bajaluv** » Sun Jul 09, 2017 8:14 am

Nice !! Welcome

Sent from my iPhone using Tapatalk Pro

ChaseTruck754 · Post by **ChaseTruck754** » Wed Jul 12, 2017 3:37 pm

Nice work on the bumper. Can't wait to see it come together

alpinejd3 · Post by **alpinejd3** » Wed Jul 12, 2017 10:08 pm

I like that bumper, looks killer.

Trex · Post by **Trex** » Sun Jul 30, 2017 9:34 pm

Ok couple of updates

1. got my Baja RS mounted up complete with seat heater

: tight!; IMG_8354.jpg (495.36 KiB) Viewed 8105 times

2. Finally got the rear bumper mounted up, had to adjust the vertical height like 3 times to get it right

: Baja RS; IMG_8353.jpg (501.79 KiB) Viewed 8105 times

: IMG_8350.jpg (448.94 KiB) Viewed 8105 times

3. Here area couple of shots of the latches (same set up as a car door)

: IMG_8351.jpg (477.13 KiB) Viewed 8105 times

: IMG_8352.jpg (341.85 KiB) Viewed 8105 times

4. Couple of shots of my stroked 302

: IMG_8355.jpg (265.98 KiB) Viewed 8105 times

Next up, need to finish the tire carrier (but wanted to bolt it up for motivation) after that extended beams!

Trex · Post by **Trex** » Sun Jul 30, 2017 9:53 pm

Sorry one more thing. I CADed up a bronco frame from the attached PIC. Maybe you can use it, no guarantees on accruacy

: frame side.jpeg (13.5 KiB) Viewed 8101 times

: frame top.jpeg (20.38 KiB) Viewed 8101 times

frame.stp.zip: (206.83 KiB) Downloaded 184 times

ChaseTruck754 · Post by **ChaseTruck754** » Mon Jul 31, 2017 10:22 am

Bumper is looking good.

What is the hex welded in the end cap of the bumper there for?

Trex · Post by **Trex** » Tue Aug 01, 2017 7:21 am

Thanks man, the hex is for holding the torsion bar. The other end hooks into the tire carrier and will reduce the force needed to pull it up.

ChaseTruck754 · Post by **ChaseTruck754** » Tue Aug 01, 2017 8:23 am

Well thought out - I like it!

Trex · Post by **Trex** » Sun Nov 26, 2017 1:42 pm

Finally got this bumper done, if I did it again I would bring the bottom up a bit more

: IMG_5917.jpg (435.69 KiB) Viewed 7588 times

: IMG_9823.jpg (701.94 KiB) Viewed 7588 times

Also add a MPI steering wheel, these are the PNs I used from summit, I was able to keep the cruise control by using the stock ford slip ring

: IMG_7833.jpg (740.43 KiB) Viewed 7588 times

https://www.kartek.com/parts/mpi-14-355 ... wheel.html
https://www.summitracing.com/parts/grt-5275
https://www.summitracing.com/parts/grt-4009 (this guy was of poor quality I had to drill out my wheel to get all the bolts in)

Also pulled a front end from the junkyard, gonna cut/turn and extend!

: IMG_1233.jpg (737.44 KiB) Viewed 7588 times

Finally gonna do something a bit different for the radius arms, I'm gonna do radius links! My main concerns are getting the bottom link up as high as possible which I think will be limited by the body mount. I also want to figure out what the best top down angle is. I want the links to attach to the beams close to the shock and spindle mount but don't want to limit turning radius to much.

: Capture2.PNG (22.84 KiB) Viewed 7588 times

: Capture3.PNG (23.39 KiB) Viewed 7588 times

Trex · Post by **Trex** » Sat Jan 27, 2018 11:32 pm

Ok finally was able to make some progress on my beams. Had a guy bend up some C-shaped parts, best 140$ I have ever spent. Next up, I got some 1" by 3.5" 4140 plate on order to help kick out the bottom ball joint mount.

Needles929 · Post by **Needles929** » Mon Jan 29, 2018 10:31 am

Wow! You made that look easy... LOL
Nice Work!

biggiek · Post by **biggiek** » Mon Jan 29, 2018 9:42 pm

More info on steering wheel mod!

Trex · Post by **Trex** » Sun Feb 04, 2018 3:29 pm

Thanks, Here are a couple pics of how I modified the 5 bolt -> 6 bolt adapter to run the wires out. The bracket is from the sock set up, i just ground it flat to sit between the two adapters. The second pic shows the connector coming out of the stock Ford slip ring (not shown), the only mod I made to the adapter is I had to drill a hole in the plate sits in the bottom of the adapter.

cs_drums · Post by **cs_drums** » Tue Feb 06, 2018 11:23 am

My buddy and I discussed that radius arm design. I like the idea of it but I found several epic fail pics of them. Running the two links like that takes a lot of the strength of the radius arm. I know people have done it successfully but I don't know if the performance gains (if any) are worth the reliability loss.

Not trying to deter you but I just thought its worth the discussion.

Trex · Post by **Trex** » Wed Feb 07, 2018 10:49 pm

For sure, my thought are the links provide caster control which helps steering return/feel. Also because you steer very often improvements here would be a benefit. I do think links are not as strong in bending as a traditional radius arm setups so anything that hits the bottom link is a concern. I would love to see an pics of failures (always great to learn from broken parts). I'm running my links with a FK RSMX14T (1" shank, next size down from the 1 1/4" people normally run) on one end and a threaded bushing with 1-1/4" thread on the other side, bolt size is 5/8" on both ends with all 4130 bungs and tube with 1.75" .120" wall (I plan on heat treating). I figure these links can handle at least 45,000 lbf in tension/compression so I'm hoping if I don't crash in to a rock they won't break. I do plan on pushing the links up as much as I can I'm actually gonna trim the body mount.

: Screen Shot 2018-02-07 at 9.46.28 PM.jpg (352.64 KiB) Viewed 7195 times

Aslo I'm pretty sure the old Dave Ashely truck had this setup (check out this vintage video I found of it)

: ashley640x299.jpg (29.12 KiB) Viewed 7195 times

https://www.youtube.com/watch?v=ushbhIx-ttA

ChaseTruck754 · Post by **ChaseTruck754** » Thu Feb 08, 2018 9:49 am

Yes the Ashley truck had that setup.

This truck had them as well, but I'm not sure it was ever completed & run.

: IMG_1265.jpg (460.87 KiB) Viewed 7173 times

: 70s ford.jpg (52.35 KiB) Viewed 7173 times

: l_ddd1c7f4925183586a882c71b7cfae1a.jpg (51.57 KiB) Viewed 7173 times

: 3.jpg (337.09 KiB) Viewed 7173 times

Trex · Post by **Trex** » Wed Mar 07, 2018 8:54 am

Small update, got my front end back from laser cut, managed to fit everything on a single 3' X 3' sheet of 3/16 4130, I'm also stoked on the lower ball joint mount just need to make a jig to locate it.

Bobby Velazquez · Post by **Bobby Velazquez** » Wed Mar 07, 2018 9:47 am

It is coming great!

mobil1syn · Post by **mobil1syn** » Tue Mar 13, 2018 2:45 pm

what is the taper on the reamer you are using?