The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - C4 Dropmember and Trailing Arm Conversion Install

SCOTI · 03-04-2010, 11:55 AM

I'm curious about one concern.... The 67-72's have the drive shaft loop extended higher (above the top plane of the frame rail) for clearance. The CPP 73-87 conversion piece has the c.member loop flipped & it's on the bottom. The top portion of the c.member does not extend beyond the frame rail.

I know on my 68 w/the stock TA c.member, the d.shaft was pretty close @ the top (~8" drop). My 74 has the top of the axle tube within 1" of the bottom plane of the frame rail so it looks to be several inches lower than Wild83C10's truck.

I'm wondering what kind of clearance there will be @ my ride height?
What ride height is the CPP 'kit' meant to be set at (2/4 drop; 4/6 drop, etc...)?

03-04-2010, 11:55 AM	#27
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,907	Re: C4 Dropmember and Trailing Arm Conversion Install I'm curious about one concern.... The 67-72's have the drive shaft loop extended higher (above the top plane of the frame rail) for clearance. The CPP 73-87 conversion piece has the c.member loop flipped & it's on the bottom. The top portion of the c.member does not extend beyond the frame rail. I know on my 68 w/the stock TA c.member, the d.shaft was pretty close @ the top (~8" drop). My 74 has the top of the axle tube within 1" of the bottom plane of the frame rail so it looks to be several inches lower than Wild83C10's truck. I'm wondering what kind of clearance there will be @ my ride height? What ride height is the CPP 'kit' meant to be set at (2/4 drop; 4/6 drop, etc...)? __________________ 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.* Last edited by SCOTI; 03-04-2010 at 11:56 AM.