The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - front crossmember-pre runner bumber Build

nrb's70gmc · 03-10-2018, 03:23 PM

Hay everyone id like to share my most recent update to my truck
this idea started out of the blue and a piece of 12in x 3/8in flat plate.

it may not be what you like or built the way you woud do it but its 100% my truck and my idea and i think it turned out ok.

whole thing is bolt on using factory frame holes (+ some holes) with 1/2in and 5/8ths grade 8 bolts and the bumber can be removed from crossmember.

tubing is 1 1/2in .120 DOM

only tools used were a welder and and angle grider.
hope you enjoy.

SO IT STARTS- FRAME WIDTH X12in FLAT PLATE SCORDED AND HAND BENT, SEEMS WELDED UP GROUND DOWN AND SMOOTHED.
(MY IDEA WAS A CROSSMEMBER THAT WOULD WRAP AROUND FRONT OF TRUCK FRAME.

CROSSMEMBER ALL DONE

STARING TUBE BUMBER DESIGN-ANGLE OF 1970 GMC GRILL

MATCHING TUBE ANGLE WITH GRILL ANGLE

THE 2 (OUTER ANGLES) LINE UP WITH INSIDE OF HEADLIGHT BUCKETS

1/4in PLATE USED FOR FRAME TIE INS

HUGS THE FRAME

NOT ME :-)

DESIGNED IT TO LINE UP WITH BOTTOM OF GRILL

ALL DONE

03-10-2018, 03:23 PM	#1
nrb's70gmc Registered User Join Date: Sep 2008 Location: magalia,ca Posts: 366	front crossmember-pre runner bumber Build Hay everyone id like to share my most recent update to my truck this idea started out of the blue and a piece of 12in x 3/8in flat plate. it may not be what you like or built the way you woud do it but its 100% my truck and my idea and i think it turned out ok. whole thing is bolt on using factory frame holes (+ some holes) with 1/2in and 5/8ths grade 8 bolts and the bumber can be removed from crossmember. tubing is 1 1/2in .120 DOM only tools used were a welder and and angle grider. hope you enjoy. SO IT STARTS- FRAME WIDTH X12in FLAT PLATE SCORDED AND HAND BENT, SEEMS WELDED UP GROUND DOWN AND SMOOTHED. (MY IDEA WAS A CROSSMEMBER THAT WOULD WRAP AROUND FRONT OF TRUCK FRAME. CROSSMEMBER ALL DONE STARING TUBE BUMBER DESIGN-ANGLE OF 1970 GMC GRILL MATCHING TUBE ANGLE WITH GRILL ANGLE THE 2 (OUTER ANGLES) LINE UP WITH INSIDE OF HEADLIGHT BUCKETS 1/4in PLATE USED FOR FRAME TIE INS HUGS THE FRAME NOT ME :-) DESIGNED IT TO LINE UP WITH BOTTOM OF GRILL ALL DONE __________________ 1970 2wd 3/4 ton- 2004 crate 350 thorley tri-y headers-edelbrock performer eps manifold 600cfm performer carb, crane cams energizer cam,lifters, dual 2.5 magnaflows, mallory HEI, powermaster 140 amp altenator, griffen aluminum radiator.(8 MPG)