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SCOTI · 12-20-2003, 03:43 AM

I've trimmed all my a-arms back on trucks I've owned/lowered. The trick is to trim the lip w/o creating any sharp edges that can develop into a stress related crack.

To prevent the chance of cracks, I drill a 5/16 or 3/8 hole where I want the trimmed part to stop. Then cut the lip off from the hole to the balljoint area & grind everything smooth. I'll also trim the opposite side of the hole (towards the frame) to a 45deg angle.

I've never had a problem w/just trimming the arms, but boxing them would be the best.

12-20-2003, 03:43 AM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,133	I've trimmed all my a-arms back on trucks I've owned/lowered. The trick is to trim the lip w/o creating any sharp edges that can develop into a stress related crack. To prevent the chance of cracks, I drill a 5/16 or 3/8 hole where I want the trimmed part to stop. Then cut the lip off from the hole to the balljoint area & grind everything smooth. I'll also trim the opposite side of the hole (towards the frame) to a 45deg angle. I've never had a problem w/just trimming the arms, but boxing them would be the best. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*