Payload question/ beef up ??

I just bought a 2002 Tundra 2wd - 4dr access cab - I have 2 issues. 1. My turn indicators stopped working tonight. And I dont see a fuse designated turn indicators. Ive read threads on here saying the "guages" fuse and others are sometimes related to the turn indicators. My 4 way Hazards are working. And 2. I want to install my Tommy Liftgate on my Tundra and wonder if I will need to increase the suspension strength in the rear ? I would greatly appreciate any input .

 

The Tommy gate/ liftgate weighs approx 500 lbs. I do not want to cause my rear struts / or springs / shocks to wear down prematurely so need to know how to handle this.

 

Try deaver springs if your stock springs aren't worn. they'll do the trick.

 

^ just be sure to get the right pack. The K37 leafs won't help with load carrying abilities.