For those have done the 8.8 conversion. - Pirate4x4.Com : 4x4 and Off-Road Forum

jsawduste · 09-15-2006, 06:19 AM

I am upgrading the 4 cylinder manual trans. YJ as funds (and parts) become avaliable.

Question;
I have a 8.8 ready to install. Can I use the stock driveshaft without the SYE ?

The transfer case is going to be a JB 231HD with the SYE but it will not be ready for a few weeks. I`d like to get the 8.8 installed in the mean time. But need to know if I can get away with using the stock 4 cylinder/5 speed drive shaft till the JB 231 comes in.

Course I will not be using the 4WD with the front 4.10`s.

The front HP44 will not be done for a few weeks also. At that point I will do the driveshaft dance on both ends.

Thanks

rbaer · 09-15-2006, 08:31 AM

It'll work.

CCJC · 09-15-2006, 08:59 AM

Been there done that. No problems at all

kris1351 · 09-17-2006, 09:23 PM

Yes, no problem. Ran mine for 8 months without an SYE on it.

jeepfreak81 · 09-19-2006, 07:02 AM

No problems with it stock, I also run the same shaft with my 355 and 33's, I do carry a spare shaft now just in case I blow it though.

supernatural · 09-19-2006, 07:07 AM

the 8.8 pinion is actually longer, so the SYE is in a way needed less cause the longer pinion gives you a little length back to the set up

mingoglia · 09-22-2006, 08:59 AM

Quote:

Originally Posted by supernatural

the 8.8 pinion is actually longer, so the SYE is in a way needed less cause the longer pinion gives you a little length back to the set up

However the offset pinion adds a new degree (no pun intended) of fun when trying to fight vibration without a SYE. When I did my 8.8 I just saved the pennies for the SYE right away for this reason.

Mike

KC2OTE · 09-22-2006, 03:27 PM

How is the 8.8 setup?? The spring perches need to be in different places to get the correct pinion angle for a stock driveshaft versus a CV driveshaft. If you don't need to drive it before the t-case comes in, you will save yourself lots of duplicate work by waiting.

I've welded my spring perches 3 times so I know what a pain in the butt it can be.

The offset pinion shouldn't cause any vibrations because the pinion will still be parallel with the centerline of the vehicle and the t-case output will also be parallel with the centerline of the vehicle so the u-joint angles (when viewed from above) at both ends will be the same.

09-15-2006, 06:19 AM	#1 (permalink)
jsawduste Zeus of the Sluice Join Date: Aug 2006 Member # 77571 Posts: 2,821	For those have done the 8.8 conversion. I am upgrading the 4 cylinder manual trans. YJ as funds (and parts) become avaliable. Question; I have a 8.8 ready to install. Can I use the stock driveshaft without the SYE ? The transfer case is going to be a JB 231HD with the SYE but it will not be ready for a few weeks. I`d like to get the 8.8 installed in the mean time. But need to know if I can get away with using the stock 4 cylinder/5 speed drive shaft till the JB 231 comes in. Course I will not be using the 4WD with the front 4.10`s. The front HP44 will not be done for a few weeks also. At that point I will do the driveshaft dance on both ends. Thanks

09-15-2006, 08:59 AM	#3 (permalink)
CCJC Registered User Join Date: Feb 2005 Member # 42789 Posts: 109	Been there done that. No problems at all __________________ '95 YJ w/OME lift, 33" SSRs, front & rear ARB, and a Warn 8274, NOW WITH FORD 8.8 & 4.0L Chinook Country Jeep Club ECO Four Wheeling Society Calgary Jeep Association

09-17-2006, 09:23 PM	#4 (permalink)
kris1351 Granite Guru Join Date: Dec 2004 Member # 40704 Location: Lewisville, Tx Posts: 654	Yes, no problem. Ran mine for 8 months without an SYE on it. __________________ Kris Buy it, use it, break it, fix it, trash it, change it, melt - upgrade it -------------------------------------- http://www.myjeepsite.com - Free Pic Hosting & Blogs http://www.ncserv.com - Premier Web Hosting Solutions

09-19-2006, 07:02 AM	#5 (permalink)
jeepfreak81 Registered User Join Date: Feb 2003 Member # 16901 Location: Owosso, Mi Posts: 105	No problems with it stock, I also run the same shaft with my 355 and 33's, I do carry a spare shaft now just in case I blow it though. __________________ 1994 Wrangler -- 355 Chevy, 700R4, D44, D60, 37's 1946 CJ2A -- 225 V6, and 34's towing a 1966 M416

09-19-2006, 07:07 AM	#6 (permalink)
supernatural Registered User Join Date: Feb 2004 Member # 27390 Location: crawlorado Posts: 739	the 8.8 pinion is actually longer, so the SYE is in a way needed less cause the longer pinion gives you a little length back to the set up __________________ [COLOR="Red"]"In vino, veritas"[/COLOR]

09-15-2006, 08:31 AM	#2 (permalink)
rbaer Registered User Join Date: Apr 2004 Member # 29571 Location: Middle Earth (well, OK, Texas) Posts: 504	It'll work.

09-22-2006, 03:27 PM	#8 (permalink)
KC2OTE Registered User Join Date: Aug 2006 Member # 78408 Posts: 110	How is the 8.8 setup?? The spring perches need to be in different places to get the correct pinion angle for a stock driveshaft versus a CV driveshaft. If you don't need to drive it before the t-case comes in, you will save yourself lots of duplicate work by waiting. I've welded my spring perches 3 times so I know what a pain in the butt it can be. The offset pinion shouldn't cause any vibrations because the pinion will still be parallel with the centerline of the vehicle and the t-case output will also be parallel with the centerline of the vehicle so the u-joint angles (when viewed from above) at both ends will be the same. Last edited by KC2OTE; 09-22-2006 at 03:29 PM.

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