The First Years TRUE FIT 630 - Manual (Page 26)

Section 7 - Installation and Use
The True Fit, in a Rear Facing installation was designed with a
removable upper seatback to allow for a proper installation when
the upper seatback comes in contact with the front seat. If the upper
seatback comes in contact with the front seat and prevents a 45
degree installation, remove the upper seatback and install the True Fit
at 45 degrees per the instructions in this section. To remove the upper
seatback refer to section 7.17 and read all WARNINGS . Reinstall
the upper seat back when child reaches 22 lbs. Keep child rear facing
as long as possible
If you have any question regarding the use of the upper seat back
or any other questions please contact the First Years staff at
1-888-899-2229.
7.3 Rear Facing Installation with Seat Belt.
25
use a Top
Tether
connector in
a rear facing
installation!!
NEVER