JohnnyJ
Low Range Drifter
I have been documenting this build on my local forum, but there is very little traffic left there and the syrup suckers are just keeping it on life support to get their ad revenue. I have thought about moving this over here for a while, and after consistently coming here to ask tech questions, I figured I might as well.
For some background on the build, in Summer 2016 I sold out of my part of a 4500 race car and was looking to get back into rec wheeling and rockcrawling. For a year or so I was bouncing around ideas of what build. I went and found the drivetrain out of 2001 Yukon XL with a broken frame. I had some drivetrain parts on my table thinking about building a rockbuggy when I saw that Goatbuilt was going to start making the JHF chassis. I had some pictures of various buggies that I was using for inspiration, and a few JHF buggies were what I was going to use for "inspiration". By January 2018 I ordered the chassis and got to work. I took most of 2020 off after getting burned out and having other stuff going on. I got back at it in 2021 to join a trip to Colorado.
Here's some details on the build, and some part numbers that I've been saving for reference.
GoatBuilt JHF Chassis, 108" wheelbase, "jeep" hood and grille
2007 Ford F250 Dana 60, 5.38, Sparty locker, JHF high-steer
- narrowed 4" to use 78 F250 axleshaft on the long side, using factory 1550 shafts
1998 Chevy K3500 14-bolt, shaved, 5.38, Detroit, 1/2t chevy disc brakes
39" BFG Krawler Red labels on KMC Machete Beadlocks
2001 GMC Yukon XL 6.0L LQ4
Atlas transfer case, 3.0 low range
Fox 2.5 air shocks
PSC Full Hydro, 2.5x10" ram, TC-pump
Mastercraft cheap seats with Impact 5-point harnesses
Griffin 31x19 radiator, Derale 16927 shroud and twin fans
Goatbuilt fuel tank and factory fuel pump
Magnaflow muffler mpe-12649
Spring 2022 at Sand Hollow:
For some background on the build, in Summer 2016 I sold out of my part of a 4500 race car and was looking to get back into rec wheeling and rockcrawling. For a year or so I was bouncing around ideas of what build. I went and found the drivetrain out of 2001 Yukon XL with a broken frame. I had some drivetrain parts on my table thinking about building a rockbuggy when I saw that Goatbuilt was going to start making the JHF chassis. I had some pictures of various buggies that I was using for inspiration, and a few JHF buggies were what I was going to use for "inspiration". By January 2018 I ordered the chassis and got to work. I took most of 2020 off after getting burned out and having other stuff going on. I got back at it in 2021 to join a trip to Colorado.
Here's some details on the build, and some part numbers that I've been saving for reference.
GoatBuilt JHF Chassis, 108" wheelbase, "jeep" hood and grille
2007 Ford F250 Dana 60, 5.38, Sparty locker, JHF high-steer
- narrowed 4" to use 78 F250 axleshaft on the long side, using factory 1550 shafts
1998 Chevy K3500 14-bolt, shaved, 5.38, Detroit, 1/2t chevy disc brakes
39" BFG Krawler Red labels on KMC Machete Beadlocks
2001 GMC Yukon XL 6.0L LQ4
- Holley TerminatorX EFI
- Champ oil pan (high-ish clearance, baffled, steel)
- Dorman LS2 car intake and stock cable throttle body
- Holley fuel rails with late-model 6.0 truck injectors (EV6, E85 flow rates, 12613412)
- Goatbuilt accessory brackets, TC pump on driver's side, alt on passenger
- Truck Norris cam, 706 heads (stock 5.3)
Atlas transfer case, 3.0 low range
Fox 2.5 air shocks
PSC Full Hydro, 2.5x10" ram, TC-pump
Mastercraft cheap seats with Impact 5-point harnesses
Griffin 31x19 radiator, Derale 16927 shroud and twin fans
Goatbuilt fuel tank and factory fuel pump
Magnaflow muffler mpe-12649
Spring 2022 at Sand Hollow:
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