Porch951
NAXJA Forum User
- Location
- Albuquerque, NM
I installed a SYE hack-n-tap kit from Iron Rock Offroad (basically a yoke + "refurbished" front driveshaft). I didn't really have many vibes before, but i knew i'd need it down the line, so i figured what the heck...
Now, at speeds around 60 i start getting some pretty nasty vibrations.
I tried contacting IRO to see if they had any suggestions, but so far (2+ weeks) they haven't returned my email, so, here i am!
I currently have a 3" lift. The IRO kit tells you to remove your transfer case drop, but i'm running a manual crossmember with an auto trans (so i have about a 3/4" drop, and i can't remove it). I have a D44 rear. When i measured 33.xx inches from the diff yoke, i would have ended up with 1/4" of splines--so i added 3/4" which they say is okay to do in the instructions. Eventually i plan to go to 4.5" lift so it'll probably even out anyways.
The install went really smoothly, i ran the engine with the trans in reverse to cut and drill the output shaft--it was a perfect cut and the hole is perfectly centered.
Any ideas? Is it possible i got a driveshaft that's out of balance, or is there some kind of minimum angle needed for a double-cardan driveshaft, or something like that?
TL;DR: I did the install correctly, i have a 3/4" transfer case drop and 3" lift, and i'm getting awful vibes at 60.
Few pictures:
Now, at speeds around 60 i start getting some pretty nasty vibrations.
I tried contacting IRO to see if they had any suggestions, but so far (2+ weeks) they haven't returned my email, so, here i am!
I currently have a 3" lift. The IRO kit tells you to remove your transfer case drop, but i'm running a manual crossmember with an auto trans (so i have about a 3/4" drop, and i can't remove it). I have a D44 rear. When i measured 33.xx inches from the diff yoke, i would have ended up with 1/4" of splines--so i added 3/4" which they say is okay to do in the instructions. Eventually i plan to go to 4.5" lift so it'll probably even out anyways.
The install went really smoothly, i ran the engine with the trans in reverse to cut and drill the output shaft--it was a perfect cut and the hole is perfectly centered.
Any ideas? Is it possible i got a driveshaft that's out of balance, or is there some kind of minimum angle needed for a double-cardan driveshaft, or something like that?
TL;DR: I did the install correctly, i have a 3/4" transfer case drop and 3" lift, and i'm getting awful vibes at 60.
Few pictures:
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