Tourboy
Observer
I'm running these front and rear on the FTS800 and it rides quite nicely, controls the parabolics up front and the mega sized packs at the rear.
Replace stock shocks
- Thread starter garybo
- Start date
I'm running these front and rear on the FTS800 and it rides quite nicely, controls the parabolics up front and the mega sized packs at the rear.
skippythedog
Observer
I just acquired a 2007 fg140. I found a thread on this site where a fellow had installed Rancho 9000's on his 2003....so I know they fit 03-07. I installed them in conjunction with the Timbren bump stops on the front and was very pleased with the results. The jolts from expansion joints/sudden dips etc. are greatly reduced. I ran them initially on the lowest setting which did not provide enough rebound damping. Then I cranked them to midpoint and the ride was nearly as severe as w/ the stock parts. (This was unladen at 8600lbs)....I finally settled on setting #2 (of 9) on front and rear. Obviously, there's plenty of room left for adjustment. The part #s are: 999117 (fr) and 999113 (rear). The Timbrens increase the distance substantially between the stop and frame. You can score the shocks on Amazon for $89-$110 each. Timbrens run about $200 on the net. The Timbren rear set is $400 and I'm tempted to try that but have not found an opinion from someone who's tried them. Try sticking your hand between your bump stop and frame...bet it won't fit in there with the stock stops....that's what you're hitting. Then your worn shocks are letting the springs catapult you into the air... I believe the perfect FG shock would have adjustable compression and rebound damping. Every situation is different. I run Bilsteins on my 5.7 Tundra and have run Bilsteins, KYBs and Rancho 5000's in the past on Dodge diesels...The Bilsteins always seemed a bit too stiff on compression while the Rancho's were very progressive and comfortable. (Body roll was fine as I install sway bars on everything I own. I'm exploring that now for the FG. I think a sway bar would benefit a heavily laden camper FG too. I really think Rancho's really got their valving down and I'm pretty sure I'm going to fit their stuff to anything I get in the future.
Decanter
Adventurer
My stock front shock measures 14.5" or 368mm collapsed and 21 5/8" or 549mm extended with a pin/eye configuration. The 2007 specified above is 311/473 pin/eye configuration so it would be too short. Options from the Rancho chart below don't seem to have the right ends. I'm also worried about the increased body diameter. I've emailed Rancho will post.
RS999040 356/594 pin/eye - upper mount is S42 and lower mount is LS23, 2.75" body
RS999179 356/569 pin/eye - upper mount is S4 and lower mount is L1, 2.75" body
RS999296 349/549 pin/eye - upper mount is s51 and lower mount is LS42, 2.75" body
My shock body is 2.1" and 1.7" respectively in diameter. S1 (3/8" or 10mm) upper mount and E2 ( 12mm ID x 32mm wide) lower mount.
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Decanter
Adventurer
Rancho came back with this:
"We do show a part number with such dimensions with s4 (3/8" stud upper mount) x l1 (5/8" eyelet lower mount) 13.38" compressed lenght x 21.88" extended lenght. Part number is 37024. "
I couldn't find that part number under Rancho. It's a Monroe shock part I believe. Their second email clarified:
"Part number for Rancho is RS5186"
These parts fit the rear of a 1997 Isuzu Rodeo I believe.
RS999179 may work for the front of the newer Fuso's if that 2.75" body won't cause any problems. It's close. A sleeve could be put in the bushing on the bottom and it just might work.
"We do show a part number with such dimensions with s4 (3/8" stud upper mount) x l1 (5/8" eyelet lower mount) 13.38" compressed lenght x 21.88" extended lenght. Part number is 37024. "
I couldn't find that part number under Rancho. It's a Monroe shock part I believe. Their second email clarified:
"Part number for Rancho is RS5186"
These parts fit the rear of a 1997 Isuzu Rodeo I believe.
RS999179 may work for the front of the newer Fuso's if that 2.75" body won't cause any problems. It's close. A sleeve could be put in the bushing on the bottom and it just might work.
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Goldanfish
Observer
Power downs .Not worth a knob of nanny goats. I got 17.000 k's
Decanter
Adventurer
I just finished putting Rancho RS9000 XL shocks on the front of my 2013 FG140. It's Rancho part number RS999179. The upper mount is 9.74mm diameter vs stock at 10.36mm. The lower mount took a 16mm OD 12mm ID 32mm long sleeve. Pictures on my instagram if anyone's interested. They were just over $100 each.