Shaking @ takeoff and stopping

[shado72]

Just did a rear leaf upgrade from stock springs and 2" lifting blocks. To 11pack 3.5" WH leaf springs. With the old suspension I noticed everytime I would stop or accelerate there would b a shift in the bronco like the driveline was rockin forward.when removing the old springs we found out that the aluminum lift blocks were both cracked. Fixed the shift in the bronco with the upgrade.
After new springs were installed i noticed after take off and acceleration the bronco would shutter or (shake) and after 10 to 15 miles it would stop. Also notice shutter when stopping.Dont know if it could b the driveline or what?

Viperwolf, I could use ur wisdom right about now!

Any advice would b much appreciated!

 

[broncodriver99]

Have you checked your u joints? Sounds like you may have had some pinion angle issues if the old blocks were cracked and you were probably getting a lot of spring wrap. I would also check to see if there is any play in the pinion bearings in the rear.

 

[broncnaz]

X2 Im betting on driveshaft issues as well. Also recheck your ubolt torque after the first 100 miles.

 

[shado72]

Thanks guys.... Will check in the morning.