well... speed vibration and RPM vibration can be two totally different things to look at... and not always related to each other...did you install a new OEM flywheel or a new DMF ? or used when you did the swap?
So used the truck this weekend towing the horse trailer and got to thinking the truck didnít vibrate before I did manual swap and the trans is far from new. So is there something with the trans that could cause a rpm and a speed vibration both? Zf-5 has right at 200000 miles and I installed a south bend clutch in it when swap was completed. Synchronizers arenít in the greatest shape. Shifts ok if you shift slow. Trying to down shift fast to 4th normally isnít to good and shifting down the second isnít to good either. But can be drove with out grinding.
If synchros are not as smooth as youíd like try RedLine MTF in the ZF. Put it in all our ZFs, good stuff and should aid in shifting. Son Liam still not sorted vibration.... Iím thinking on his itís the double cardigan joint.
Tan white tan 97 ECLB, D60 PMF, RSK SD springs front, airs bags rear, 4:10, intake, FFD 205/30s, DP 4Ē exhaust DIY E-fuel, ZF-5 now To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. B&W turnover 5th wheel with Anderson hitch.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Location: 2008 f350 crewcab short bed dually manual.
Re: 1997 f250 vibration at 55-60
I can down shift to forth as long as I do it slow. And second is just out of question if I’m not below 15. But really don’t need to do that often. The forth on the other hand sticks. When pulling hills sure would be nice to jam a gear and keep my rpms up. Mine did it with a 2 joint set up. Then did exact same thing with double carden joint and tapered blocks. So idk just wondering if maybe my trans is what’s causing prob. I didn’t have a rpm or a speed vibration before swap so....