reverse makes a loud bang - The 1947 - Present Chevrolet & GMC Truck Message Board Network

shipma3 · 03-30-2013, 01:33 AM

is it fairly normal for the reverse gear in a th350 to make a loud bang when it goes into gear? my stepdad's k20 did the same thing as my k10 but he did not have any problems with the tranny up til he sold it

INSIDIOUS '86 · 03-30-2013, 03:11 AM

Find out if the bang is from the diff or the trans

My freinds banged when he shifted into gear. More so in reverse. The spider gears and center chart in the diff were so warn they were about to let go.

You can tell if you have a buddy look under and watch the driveshaft move a hole bunch when you go from D to R plus you hear it.
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shipma3 · 10-25-2013, 02:23 AM

sorry for bumping a old post but ya it was the rear diff after replacing it it does not shift near as hard into reverse

riz · 10-25-2013, 07:34 AM

Check your u-joints in the rear end.... sloppy u-joints can make a nasty banging when going into reverse.

RIZ

wilkin250r · 10-25-2013, 11:08 PM

Yeppers, differential will do it. My truck is full-time 4wd, and it's my front diff that goes "clunk" when shifting into reverse.

I haven't torn into mine yet. Of all the things that could possibly be wrong in there (worn/broken teeth on the ring or pinion, bad spider gears, ect ect) is there any culprit that is more likely than others?

It's a D44 front, and it's DEFINITELY clunking in the front diff. It's not a U-joint.

03-30-2013, 01:33 AM	#1
shipma3 Registered User Join Date: Mar 2012 Location: manti utah Posts: 67	reverse makes a loud bang is it fairly normal for the reverse gear in a th350 to make a loud bang when it goes into gear? my stepdad's k20 did the same thing as my k10 but he did not have any problems with the tranny up til he sold it

03-30-2013, 03:11 AM	#2
INSIDIOUS '86 Registered User Join Date: Jul 2009 Location: washington Posts: 4,178	Re: reverse makes a loud bang Find out if the bang is from the diff or the trans My freinds banged when he shifted into gear. More so in reverse. The spider gears and center chart in the diff were so warn they were about to let go. You can tell if you have a buddy look under and watch the driveshaft move a hole bunch when you go from D to R plus you hear it. Posted via Mobile Device __________________ 377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511

10-25-2013, 02:23 AM	#3
shipma3 Registered User Join Date: Mar 2012 Location: manti utah Posts: 67	Re: reverse makes a loud bang sorry for bumping a old post but ya it was the rear diff after replacing it it does not shift near as hard into reverse

10-25-2013, 07:34 AM	#4
riz Registered User Join Date: Oct 2011 Location: hudson,wi Posts: 805	Re: reverse makes a loud bang Check your u-joints in the rear end.... sloppy u-joints can make a nasty banging when going into reverse. RIZ

10-25-2013, 11:08 PM	#5
wilkin250r Registered User Join Date: Sep 2010 Location: Lake Tahoe, Nevada Posts: 755	Re: reverse makes a loud bang Yeppers, differential will do it. My truck is full-time 4wd, and it's my front diff that goes "clunk" when shifting into reverse. I haven't torn into mine yet. Of all the things that could possibly be wrong in there (worn/broken teeth on the ring or pinion, bad spider gears, ect ect) is there any culprit that is more likely than others? It's a D44 front, and it's DEFINITELY clunking in the front diff. It's not a U-joint. __________________ I know a little about cars, but if you have a question about electricity or sport quads, I'm your man!!!



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