2wd traing arm crossmember? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**SOON2BLAZE** · 03-17-2010, 10:09 AM

Well I opened a can of worms when I put a 9" diff and 4" aluminum drive shaft in my blazer. The off set of the diff yolk, the 6" drop and the large drive shaft has created about a 1/2 space between the trailing arm crossmember hoop and the drive shaft ( on the top and the passanger side of the hoop) Since I was worried about having so little clearance I purchased a early classics trailing arm crossmember. It arrived yesterday and the hoop appears small. ( might need to call nate for one of his) Any one else running a non stock cross member? Should I be so concerned with the lack of clearance? Any help would be much appreciated!

**SOON2BLAZE** · 03-19-2010, 09:00 PM

1st pic is what is there now, 2nd is whats coming from porterbuilt next week(pic stolen from nates web site) This should address any clearance issues.

**Tom Vogel** · 03-20-2010, 12:12 AM

A miss is a miss (if youve run it through a full range of travel) clearance should be ok. Id be more concerned about the slightly cocked alignment of your driveshaft. Im running a nine inch and a 4" aluminum driveshaft but it runs straight back.

**SOON2BLAZE** · 03-20-2010, 09:49 AM

I've read up on pinion off set and spoke to my local drive train shop. This is not an issue. If I was going to have a 9" made or fab one myself, I would center the 3rd member with the axles.

03-17-2010, 10:09 AM	#1
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	2wd trailing arm crossmember? Well I opened a can of worms when I put a 9" diff and 4" aluminum drive shaft in my blazer. The off set of the diff yolk, the 6" drop and the large drive shaft has created about a 1/2 space between the trailing arm crossmember hoop and the drive shaft ( on the top and the passanger side of the hoop) Since I was worried about having so little clearance I purchased a early classics trailing arm crossmember. It arrived yesterday and the hoop appears small. ( might need to call nate for one of his) Any one else running a non stock cross member? Should I be so concerned with the lack of clearance? Any help would be much appreciated! Last edited by SOON2BLAZE; 03-17-2010 at 02:48 PM.

03-19-2010, 09:00 PM	#2
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	Re: 2wd trailing arm crossmember? 1st pic is what is there now, 2nd is whats coming from porterbuilt next week(pic stolen from nates web site) This should address any clearance issues. Attached Images

03-20-2010, 12:12 AM	#3
Tom Vogel 2WD Jimmy Join Date: Mar 2005 Location: Davis County, Utah Posts: 2,565	Re: 2wd traing arm crossmember? A miss is a miss (if youve run it through a full range of travel) clearance should be ok. Id be more concerned about the slightly cocked alignment of your driveshaft. Im running a nine inch and a 4" aluminum driveshaft but it runs straight back.

03-20-2010, 09:49 AM	#4
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	Re: 2wd traing arm crossmember? I've read up on pinion off set and spoke to my local drive train shop. This is not an issue. If I was going to have a 9" made or fab one myself, I would center the 3rd member with the axles.



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