Marlin is a pioneer in the toyota industry. Trail gear os a copy cat id say. Ive had marlin springs...all pro...the same...also had tg springs all 5"...the tg springs were veeery bouncy and did not flex very well...i go off of results in the end. I felt like i got waaay better results with marlins and all pros. Sounds like you should get the tg leafs though...just my opinion...
