HOW TO: Crossmember sectioning ... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SCOTI · 07-26-2018, 06:42 PM

The X-member on my dually is notched 1.5" (89 Square body). The lower a-arms are PB 1" forward units but I originally had the modified OE lowers moved forward .750".

My set-up did require the small notch to the upper driver a-arm as mentioned. MMW uppers & later model OE uppers also had too large of an OD @ the bushing area & would not have cleared (I still have the MMW arms sitting in a box on the shelf three years later

).

When I'm air'd out, I can slip a slim piece of cardboard between the shaft/notch (like a spiral notebook cover).

07-26-2018, 06:42 PM	#28
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Re: HOW TO: Crossmember sectioning ... The X-member on my dually is notched 1.5" (89 Square body). The lower a-arms are PB 1" forward units but I originally had the modified OE lowers moved forward .750". My set-up did require the small notch to the upper driver a-arm as mentioned. MMW uppers & later model OE uppers also had too large of an OD @ the bushing area & would not have cleared (I still have the MMW arms sitting in a box on the shelf three years later ). When I'm air'd out, I can slip a slim piece of cardboard between the shaft/notch (like a spiral notebook cover). __________________ 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.*



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