Things continue to shift quickly on our Project F Word ’69 F100 muscle truck . Resurrected from the life of rotting within a field, the patina vehicle is moving swiftly towards becoming a corner-carving contender. When you have been keeping tabs, proprietor Ivan Korda started at the end and is working his method up.
He started taking it entirely aside shortly after working with Silver Sport Tranny to fit the T-56 between the framerails . His objective was to strip the particular frame bare, then improve and powdercoat it to guarantee the bolt-in QA1 suspension would have a solid base . In case you were paying close interest during our own previous article focusing on setting up the Baer Brakes , all of us hinted that this article might cover the new Ford 9-inch from Strange Engineering .
Unusual Engineering used Project Farreneheit Word’s factory housing to develop an entirely new, direct-bolt-in rearend developed expressly for those planning to lower their ’65 in order to ’72 F100 — the particular Strange HIGH-DEFINITION 9-Inch Ford Housing (P/N HF9FT65F100ME). This is not the bare-bones, off-the-shelf rearend to have to locate everything plus weld in your own shock brackets and spring perches. Rather, it uses heavy-duty leaf plus shock mounts in the OE locations but is a substantial upgrade from stock. Unusual improved the geometry to get lowered trucks by shifting the shock mounts straight down 1 . 25 inches plus forward 2 . 75 ins. But , Strange Sales Supervisor J. C. Cascio, lets us know the shock locations nevertheless function just fine if the automobile is not lowered.
The center casing is constructed from. 141-inch gentle steel with a heavy-duty. 282-inch-thick faceplate. Internal gussets offer rigidity while also much better supporting the 3-inch Z by. 250-inch-wall axle pipes. The housing ends are usually forged steel. Strange furthermore makes it easier on the proprietor by including brake collection tabs, fill and empty plugs, and a vent to avoid internal pressure buildup. Almost everything is welded utilizing a lure to ensure proper alignment plus exceptional weld quality.
This housing is a perfect foundation for building a fresh new rearend under your daily street-driven vehicle or something a bit more race-oriented like the Pro Touring full-floater that Ivan decided on designed for Project F Word. Within the next section, we will discuss the extra options he chose to fit his plans.
With all the center housing as a starting place, you have many options, so it is great to call Strange (as Ivan did) to build the rear that suits your needs. Ivan desires big horsepower out of the Style 3 Coyote Aluminator which will be installed shortly, and programs to thrash this pickup truck. For that reason, he wanted several beefy upgrades. The first was your 9-inch HIGH-DEFINITION Pro Aluminum Case Set up Aluminum Support with Gear Standard Gear and 1350 Series Yoke (P/N PRF180).
The Professional HD assembly for Farrenheit Word includes the a few. 250-inch bore HD Professional Aluminum Case Kit pertaining to 35 spline axles, which usually features billet aluminum major caps and solid metal adjuster nuts. It comes regular with a forged aluminum pointed bearing pinion support along with oversized Timken bearings plus races. Ivan chose the black-oxide finished, extra-stout 4140 crmo 1350-series Yoke. Meanwhile, Task F Word will start using a 4. eleven: 1 ratio Motive Functionality Gear ring-and-pinion set (P/N RS07890411) machined through 8620 forged steel to obtain off the corners quickly.
For your differential unit, Ivan improved to the 9-Inch 35-Spline Axle Strange Solid S-Trac (P/N N1980). The S-Trac is a clutchless helical-gear differential offering the smoother and more progressive energy transfer over OEM plus clutch-style units, ideal for the particular thrashing F Word can give it on the street and monitor. The forged steel situation halves are fully precision machined and heat-treated to make the S-Trac a lightweight, durable, plus rigid unit. Internal equipment pocket geometry minimizes tension risers. It utilizes made-in-the-USA, heat-treated 9310 steel equipment (chromoly pinion) with intense gear helix angles to deliver superior torque bias, ideal for unequal traction situations. Almost all gears have a dry-film-lubricant layer on the thrust surfaces to reduce wear.
We think the S-Trac is worth the upgrade! “The S-Trac differential was designed to face up to the abuse of road, drag, autocross, and street racing, “Cascio confirms. “Simply put, it is the best overall differential on the market. This superior unit even carries a restricted lifetime warranty to the first purchaser. ”
The large diameter 28-1/8 to 32-inch 35-Spline Floater Axles (P/N A1040H32) are machined from strong Hy-Tuf material. The involuted splines are hobbed prior to heat treating, have a 30-percent pressure angle, and make use of a Spirolux retaining ring. These are low-carbon, high-manganese, high-nickel, plus high-molybdenum steel that is certain to handle whatever Project Farrenheit Word can throw with them.
With the growing popularity associated with multi-purpose vehicles, the Unusual street floater provides excellent all-around performance and dependability. — J. C. Cascio, Strange Engineering
The final choice was vital intended for competition on the track. Ivan opted to use the Strange Pro Traveling Floater Kit (P/N F5010) for the housing finishes. The spindles are 2-inch OD 4130-steel designed to suit the 3-inch housing tubes. Ivan chose to go with Ford’s 4. 5-inch spacing in the machined hubs with 1/2-inch studs.
“With the developing popularity of multi-purpose automobiles, the Strange street floater provides great all-around efficiency and reliability, ” Cascio states. “Strange has been growing its bolt-in housing apps that are capable of handling tremendous levels of power, and the street floater takes things to the next level. Whatever the purpose of your build, Unusual will have the right combination of components to keep you going. ”
Strange worked directly along with Baer to develop this specific floater kit on Task F Word, specifically installing the big rotors and disc brake calipes, and the option is now accessible to the public. “Baer Brakes is among the most respected names in automotive aftermarket brake systems, ” Cascio says. “The collaboration among Strange and Baer had been an obvious choice. The conversation and development of the braking mechanism kit were smooth plus ensures a great fit with perfect function. ”
Floaters are not a new concept, however, you rarely saw them on the street vehicle until lately. With the rise in performance-based traveling machines designed to compete over the track, the floater has turned into a must-have, but why? The actual reason is safety, yet performance is the name from the game.
For automobiles spending a lot of time cornering, these people exert mega-Gs of sideloading, creating problems ranging from a little nuisance to a catastrophic failing. The most extreme issue may be the loss of a wheel for the axle breaks, while the most typical is brake-caliper piston knockback. A floater addresses both these concerns.
In a traditional flanged rearend, the axle works more functions than just keeping the wheel on the vehicle. It supports the vehicle’s weight, transfers the rpm from the chunk, and hard disks it forward. You may not believe a hardened solid-steel axle supported by a bearing on the housing end can bend, but it most certainly can and can. With the brake rotor installed on the axle flange as well as the brake caliper solid-mounted to the casing, when the axle flexes, the particular flange (and therefore , the particular rotor) is no longer straight up plus down (essentially wobbling).
The wobbly rotor knocks and bumps the brake pad contrary to the piston, tapping it back to the cylinder. The next time you go for the particular brakes, you’ll have to pump the particular brakes to get pressure just before really hammering them. It is not only frightening, but it is also harmful when you are on the razor’s advantage where milliseconds count.
Nevertheless , a floater fixes this issue by incorporating a spindle instead of the traditional flange end. The floater hub installed on the spindle supports the weight from the truck on two huge tapered bearings (one outdoors, one inside). The axle slides in through the spindle and attaches to a generate plate that mounts on the wheel studs on the floater hub. The axle just drives the wheel plus doesn’t carry any of the car’s load. This technology guarantees two things: 1) there is absolutely no brake rotor deflection, plus 2) should an axle break, you won’t drop the wheel.
One added benefit of the full-floater rearend is with regards to maintenance. On a traditional rearend housing, if you need to do anything at all with the center section such as changing the gear ratio, you need to remove the brake calipers, brake discs, and caliper brackets before you remove the axle. With a full-floater, all of this can be left uninterrupted, not only saving you time but additionally saving you the possibility of messing some thing up when putting it in return together.
The best part about Unusual using Project F Word’s original rearend to locate the particular bracketry and fixtures is that it came back to all of us fully assembled and ready to bolt-on. If you’ve been following the develop, you will remember our posts on the QA1 suspension , part 1 right here and part 2 here . Because the QA1 suspension uses the manufacturing plant mounting points, all there were to do was connect every thing back to where we installed it with the factory 9-inch.
Now, if you are using the particular QA1 rear sway club, there is one thing to note for your installation. Because the Strange rearend is designed as a direct bolt-on for the ’65 to ’72 F100, you will need to remove the stock-location lower shock mounts to create room for the sway pub. You won’t need all of them if you are using the entire QA1 set up as we did. Beyond that will, the installation is straightforward — even more so if you are doing an investment swap.
In case you remember, back in our transmission install content , all of us already put a drive shaft in F Word, yet at the time, we were working with the particular stock 360 FE motor. Adding the Coyote designed we’d need a beefier choice. Also, with the truck reduced between five to 7 inches, the driveshaft required shortening, so it doesn’t harm the transmission. Strange walked up to the plate in this section as well. Strange offers listing driveshafts to fit any app balanced to within. 008-inch runout.
Since the Coyote is a high-revving engine, and Ivan programs to drive this truck tough, we needed a drive shaft that was precisely balanced to handle the 8, 000 rpm rev limit. Once we set up the rearend, we necessary to take a few measurements to provide to Strange. They got those measurements, along with our own power output expectations, plus made the driveshaft making use of 3-inch Z by. 083-inch seamless, heat treated 4130 chromoly tubing (P/N U1699).
As they say, drive line integrity is limited to the poorest component’s strength, so Unusual uses Spicer HD 1350 forged weld ends each front and rear. Since the transmission yoke is needed designed for balancing, they attached the particular stout black-oxide finished Ford 31-spline Serious Duty 4340 chromoly T56 yoke (P/N U1669) to match the differential yoke.
Recognizing that the driveshaft is among the final assembly steps, Unusual works a quick turnaround in order to ship the driveshaft after they receive the measurements. We obtained ours within a week! Just about all we had to do was slide the yoke in the transmitting, line up the U-joints, plus bolt them in.
The final examine box on our to-do checklist was to fill the particular rearend with gear essential oil, but what kind? We discussed to JC at Unusual, who recommended 80w-140 equipment oil. So , we found three quarts of VP Race Lubricants Hi-Performance API GL-5 80w-140LS Equipment Oil .
This gear oil is really a semi-mineral-based GL-5 extreme stress gear oil with anti-scuff, anti-wear properties, providing excellent protection against low-speed/high-torque put on, limited-slip, and high-speed rating applications. VP adds an equilibrium of multiple wear chemistries beyond ZDDP that follow a metal surfaces creating a defensive layer. Its low smell formula will keep our Unusual Engineering 9-inch happy plus lubricated when thrashing about on the street and track.
We all attached a length of obvious hose to the cap to achieve the fill hole simpler and added the 2. five quarts recommended by Unusual. A word to the sensible — this lube will be thick — so if it is cold outside when you fill up the rearend, you might want to comfortable the fluid slightly just before wearing out your forearms blending the bottle.
With the Strange Engineering rearend filled with VP gear essential oil and driveshaft installed, i was able to step back and look on the final product. Overall, all of us love the look of the rearend with the QA1 suspension plus big Baer brakes set up. You can tell just by taking a look at it how stout this particular rearend is with the full-floater option.
Down on the earth, the stance is great, with the drop afforded by changes Strange Engineering made to make this a viable performance-oriented rearend along with the QA1 suspension system. We can’t wait to obtain Project F Word enthusiastic and on the road so we may put everything through the paces. It won’t become long now!
Make sure to bookmark the Project F Word develop page for the following installment coming soon!