DinoShepherd
New member
- 43
- 0
- 0
- Location
- Sisters/OR
4k springs. I understand that the pump on our trucks does not respond exactly like the pump on the 5.9 for which these spring kits were designed. Our pumps getting less rpm than advertised on the kit.Well Ddmk18 came out today and installed my 4k springs and turned the screws and adjusted the rack travel. wow big difference. I am very pleased. all for about $80. Thanks For the help Dillon.
Are you actually hitting 4K rpm? That seems high for the 8.3.
Reason on I am asking is I picked up the pacbrake 3/4K kit and wanted to know which to install.
Thanks...