- Thread starter
- #61
Also I've added some to a short 70. Link about 6 posts up.
Review Terrain Tamer Parabolic Leaf Spring Review (2 Viewers)
- Thread starter wngrog
- Start date
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While I can understand the reason they added the short leaves, I would get shorter u-bolts before I’d sacrifice 3/4” of clearance. The pictured U-bolts even have enough threads to ditch the “spacers”.
I’m intrigued by the reported ride improvement. I’d be interested to see how they hold up… especially with a heavier truck. My 40 weighs in at 2000 lbs, and 2700 lbs rear (hardtop on).
nice, thanks. i have a set arriving next week for my 40
- Thread starter
- #64
Your 40 weighs way more that 2000#
I believe he means 2000 for the front only…and 2700rear with the hard top? but 4700 lbs total seems high…. I’m guessing around 3500 total
I did read that the same way initially
I did read that the same way initially
- Thread starter
- #66
4700# in a 40 might be too much for the Parabolics. When they get up to a certain weight they go to normal style springs. That's a TT question.
Google says a 1978 FJ40 hardtop is 3414# and the soft top was 3263"
Not counting weld, bondo, spare parts.....
Not counting weld, bondo, spare parts.....
You’d be interpreting it correctly… the front should theoretically be lighter since the 350 SBC weighs considerably less than a F. Winch and bumper offset that some.
The 4’ x 8’ sheet of 1/8” steel the rear floor and inner fenders are fabricated from, 6 point cage, Confer rear tank & 20ish gallons of fuel, air tank, and Tuffy console increase the rear axle weight. Without the hardtop and extra fuel tank (& fuel) it was almost perfectly balanced front to back and side to side. Which I’m sure is part of the reason it performs so well off road… even though it has open diffs on both ends.
Just stripped my old suspension off my truck to put these on, and before I do I figured I asked the guys that already did...
Did you put on new rubber leaf spring pads? additionally, did you keep the box like bracket that sits over the leaf springs - I think its called the leaf spring retainer plate?
Recently installed a parabolic kit on an iron pig. Worked with the Terrain Tamer / Don Kyatt staff in California to put together the kit.
Great update in ride quality. The suspension before was fully worn out.
Front springs for a 60 series. Rear springs for a 75 series. To mount the rears, the back spring perch has to be relocated 125 mm.
Had a couple of issues to work through. Frame perch bushings sent were too large. Larger diameter front left shock rubbed on steering rod. TT / Don Kyatt guys responded quickly with replacement components. They also provided recommendations for rear spring assembly rearrangement to lessen the stink bug stance.
Hopefully, replacement tires next should improve the ride more.
Great update in ride quality. The suspension before was fully worn out.
Front springs for a 60 series. Rear springs for a 75 series. To mount the rears, the back spring perch has to be relocated 125 mm.
Had a couple of issues to work through. Frame perch bushings sent were too large. Larger diameter front left shock rubbed on steering rod. TT / Don Kyatt guys responded quickly with replacement components. They also provided recommendations for rear spring assembly rearrangement to lessen the stink bug stance.
Hopefully, replacement tires next should improve the ride more.
Wow looks nice!
Looks rad. What were their suggestions to lessen the stink bug stance? I'm looking at this kit for my FJ62 but i'd like to avoid the stink bug stance at all costs.
Rearranged the short sections, moving one plate from top to bottom, raised the front about an inch.
Before photo:
After photo:
EWheeler
GOLD Star
What was the thought process on tightening those u-bolts and u-bolt plate to yield or is there some strange fish eye effect going on that makes them look very much bent?
