{"product_id":"73-87-chevy-gmc-c10-rear-frame-crossmember-bolt-on","title":"73-87 Chevy \u0026 GMC C10 Rear Frame Crossmember (Bolt-On)","description":"\u003cp data-start=\"352\" data-end=\"526\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e73-87 Rear Frame Crossmember - # 120-5600\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"19\"\u003eSquarebody trucks are built like tanks—until you cut them up to lay them low. If you've notched or backhalved your \u003cb data-index-in-node=\"115\" data-path-to-node=\"19\"\u003e1973–1987 C10\u003c\/b\u003e, you've likely removed the factory rear crossmember, leaving the tail end of your open C-channel frame free to twist, flex, and stress under load.\u003c\/p\u003e\n\u003cp data-path-to-node=\"20\"\u003eThis heavy-duty, \u003cb data-index-in-node=\"17\" data-path-to-node=\"20\"\u003ebolt-in crossmember\u003c\/b\u003e is the ultimate chassis fix. It bridges the gap between your rear frame rails, \u003cb data-index-in-node=\"116\" data-path-to-node=\"20\"\u003eboxing the rear section\u003c\/b\u003e to easily handle modern drivetrain torque and aggressive aftermarket suspension setups.\u003c\/p\u003e\n\u003cp data-path-to-node=\"21\"\u003eForget trying to hold heavy steel in place while guessing at alignment. Our design utilizes innovative \u003cb data-index-in-node=\"103\" data-path-to-node=\"21\"\u003einternal sliding sleeves\u003c\/b\u003e that slide right inside the frame channels. They act as a built-in alignment jig, squaring up the chassis perfectly and creating a bulletproof, double-walled connection once bolted down.\u003c\/p\u003e\n\u003chr data-start=\"1113\" data-end=\"1116\"\u003e\n\u003ch3 data-start=\"1118\" data-end=\"1145\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1146\" data-end=\"1497\"\u003e\n\u003cli data-start=\"1146\" data-end=\"1198\"\u003e\n\u003cp data-start=\"1148\" data-end=\"1198\"\u003eDesigned specifically for \u003cstrong data-start=\"1174\" data-end=\"1198\"\u003e1973-1987 C10 frames\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1199\" data-end=\"1257\"\u003e\n\u003cp data-start=\"1201\" data-end=\"1257\"\u003e\u003cstrong\u003eReclaims structural integrity\u003c\/strong\u003e lost during aggressive drops and C-notch installs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1258\" data-end=\"1310\"\u003e\n\u003cp data-start=\"1260\" data-end=\"1310\"\u003eEnd to \u003cb data-index-in-node=\"26\" data-path-to-node=\"23,2,0\"\u003eC-channel frame flex\u003c\/b\u003e, bed misalignment, and long-term \u003cstrong\u003emetal fatigue.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1311\" data-end=\"1372\"\u003e\n\u003cp data-start=\"1313\" data-end=\"1372\"\u003e\u003cstrong\u003eBolt-in \u003c\/strong\u003edesign with internal frame\u003cstrong\u003e inlays for added support\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1499\" data-end=\"1502\"\u003e\n\u003ch3 data-start=\"1504\" data-end=\"1529\"\u003eDesign \u0026amp; Construction\u003c\/h3\u003e\n\u003cul data-start=\"1530\" data-end=\"1747\"\u003e\n\u003cli data-start=\"1530\" data-end=\"1561\"\u003e\n\u003cp data-start=\"1532\" data-end=\"1561\"\u003e\u003cstrong\u003eASTM A1011\u003c\/strong\u003e hot-rolled steel \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1562\" data-end=\"1600\"\u003e\n\u003cp data-start=\"1564\" data-end=\"1600\"\u003ePrecision-cut for consistent fitment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1601\" data-end=\"1674\"\u003e\n\u003cp data-start=\"1603\" data-end=\"1674\"\u003eInternal \u003cstrong data-start=\"1612\" data-end=\"1655\"\u003eframe inlays slide into the frame rails\u003c\/strong\u003e for added strength\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1749\" data-end=\"1752\"\u003e\n\u003ch3 data-start=\"1754\" data-end=\"1776\"\u003eDimensions \u0026amp; Specs\u003c\/h3\u003e\n\u003cul data-start=\"1777\" data-end=\"1992\"\u003e\n\u003cli data-start=\"1777\" data-end=\"1799\"\u003e\n\u003cp data-start=\"1779\" data-end=\"1799\"\u003e\u003cstrong data-start=\"1779\" data-end=\"1790\"\u003eWeight:\u003c\/strong\u003e 18 lbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"1833\"\u003e\n\u003cp data-start=\"1802\" data-end=\"1833\"\u003e\u003cstrong data-start=\"1802\" data-end=\"1821\"\u003eOverall Length:\u003c\/strong\u003e 32.5 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1834\" data-end=\"1907\"\u003e\n\u003cp data-start=\"1836\" data-end=\"1860\"\u003e\u003cstrong data-start=\"1836\" data-end=\"1858\"\u003eFrame Rail Inlays:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1863\" data-end=\"1907\"\u003e\n\u003cli data-start=\"1863\" data-end=\"1885\"\u003e\n\u003cp data-start=\"1865\" data-end=\"1885\"\u003eHeight: 4.25 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1888\" data-end=\"1907\"\u003e\n\u003cp data-start=\"1890\" data-end=\"1907\"\u003eDepth: 2.5 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1908\" data-end=\"1992\"\u003e\n\u003cp data-start=\"1910\" data-end=\"1933\"\u003e\u003cstrong data-start=\"1910\" data-end=\"1931\"\u003eCrossmember Face:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1936\" data-end=\"1992\"\u003e\n\u003cli data-start=\"1936\" data-end=\"1956\"\u003e\n\u003cp data-start=\"1938\" data-end=\"1956\"\u003eHeight: 4.5 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1959\" data-end=\"1992\"\u003e\n\u003cp data-start=\"1961\" data-end=\"1992\"\u003eDepth: 2.75 inches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1994\" data-end=\"1997\"\u003e\n\u003ch3 data-start=\"1999\" data-end=\"2018\"\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul data-start=\"2019\" data-end=\"2079\"\u003e\n\u003cli data-start=\"2019\" data-end=\"2079\"\u003e\n\u003cp data-start=\"2021\" data-end=\"2079\"\u003e\u003cstrong data-start=\"2021\" data-end=\"2041\"\u003e1973-1987 Chevy \u0026amp; GMC C10 Trucks\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2081\" data-end=\"2084\"\u003e\n\u003ch3 data-start=\"2086\" data-end=\"2108\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul data-start=\"2109\" data-end=\"2321\"\u003e\n\u003cli data-start=\"2134\" data-end=\"2194\"\u003e\n\u003cp data-start=\"2136\" data-end=\"2194\"\u003eInlays slide into frame rails for alignment \u0026amp; strength. \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2134\" data-end=\"2194\"\u003e\n\u003cp data-start=\"2136\" data-end=\"2194\"\u003e\u003cstrong\u003eOn rare occasions,\u003c\/strong\u003e since the stock frame rails have nothing supporting the rear, they tend to bow in over time, narrowing close to an inch; this will require spreading the frame rails via porta power or another accessible tool.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2195\" data-end=\"2262\"\u003e\n\u003cp data-start=\"2197\" data-end=\"2262\"\u003e\u003cstrong\u003eWelding not required\u003c\/strong\u003e \u003cem data-start=\"2218\" data-end=\"2260\"\u003e(can be welded after bolting if desired)\u003c\/em\u003e\u003cem data-start=\"2218\" data-end=\"2260\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2081\" data-end=\"2084\"\u003e\n\u003ch4 data-start=\"1702\" data-end=\"1720\"\u003eWhat’s Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003e(1)\u003c\/strong\u003e Rear Frame Crossmember with Logo\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003e(2)\u003c\/strong\u003e 3\/8 x 1.25\" Bolts\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003e(2)\u003c\/strong\u003e 1\/2 x 1.25\" Bolts\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003e(4)\u003c\/strong\u003e 3\/8 Washers\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003e(4)\u003c\/strong\u003e 1\/2 Washers\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003e(2)\u003c\/strong\u003e 3\/8 Nylock Nuts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"979\" data-start=\"976\"\u003e\n\u003ch4 data-start=\"1872\" data-end=\"1908\"\u003eCalifornia Proposition 65 Warning\u003c\/h4\u003e\n\u003cp data-start=\"1909\" data-end=\"1962\"\u003eCancer and Reproductive Harm – \u003ca data-start=\"1940\" data-end=\"1962\" rel=\"noopener\" class=\"decorated-link\" href=\"http:\/\/www.p65warnings.ca.gov\"\u003ewww.p65warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e\n\u003chr data-end=\"979\" data-start=\"976\"\u003e\n\u003ch4 data-start=\"1909\" data-end=\"1962\"\u003eQuestions? Contact Us\u003c\/h4\u003e\n\u003cp data-start=\"1909\" data-end=\"1962\"\u003e\u003cspan\u003e(480) 940 1806 – \u003cstrong\u003eLocal\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 (877) 951-1890 – \u003cstrong\u003eToll Free\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"GSI Machine and Fabrication","offers":[{"title":"Default Title","offer_id":53471168626967,"sku":"130-8300","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/8082\/2807\/files\/not_perm.png?v=1780513578","url":"https:\/\/www.gsimfab.com\/products\/73-87-chevy-gmc-c10-rear-frame-crossmember-bolt-on","provider":"GSI Machine and Fabrication","version":"1.0","type":"link"}