Narrowing a rear end - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bulldog88 · 03-07-2011, 03:50 PM

how hard is it to narrow a 10 bolt rear end I need it to measure 54 inches it measures 57 now from the backing plates. Do I have o get new axles or can you re spline the existing ones. Does anyone know or have an idea what this will cost?

cdowns · 03-07-2011, 04:22 PM

not worth the money or effort compared to a pair of new wheels with a bit more backspacing

Bulldog88 · 03-07-2011, 04:42 PM

I wish I could I cant send them back
Posted via Mobile Device

**N2TRUX** · 03-07-2011, 05:48 PM

Will this be close enough?

Quote:

Originally Posted by SCOTI

... If you look around (search the net), an aftermarket 9"/12-bolt g-body rear housing would be a good choice as it's 4" narrower (2" per side) vs. a 6x-69 12-bolt housing....

SCOTI · 03-07-2011, 06:20 PM

What year/model 10-bolt?

Bulldog88 · 03-07-2011, 08:48 PM

10 ten out of an 88 model truck, how bout using an 94-96 impala ss rear end since it has disk brakes?

SCOTI · 03-07-2011, 11:39 PM

Quote:

Originally Posted by Bulldog88

10 ten out of an 88 model truck.... I need it to measure 54 inches it measures 57 now from the backing plates.

Your 57" measurement provided.... Are you saying you need a housing 1.5" narrower per side to achieve your 54" goal?

Quote:

Do I have o get new axles or can you re spline the existing ones.

The axles will most likely need to be custom built to length unless you get lucky & something already existing will work (GM axles don't have enough material to allow cutting & re-splining).

Quote:

how bout using an 94-96 impala ss rear end since it has disk brakes?

From what I've read on the net during my research, Caprice rear housings are around 61-61.5" & the Impala SS is slightly wider (3/8 per side, .750" total). That would put the housing right around the same width as a 6x-69 GM truck (62" wheel mounting surface to wheel mounting surface). A 2nd GEN f-body 10-bolt (or 12-bolt) would be narrower @ around 60" & a possible candidate but has a car pattern. The T/A housings from these years even had disc brakes.

Bulldog88 · 03-08-2011, 01:16 AM

Yes I need 54 inches so my wheels will work, so it looks like I need some new axles
Posted via Mobile Device

SCOTI · 03-08-2011, 01:38 AM

The 88-98 housings are about .750" wider per side vs. 71-87's. The 71-87's are .750" wider vs. the 6x-69's. Sounds line the 62" wheel mounting surface to WMS of the 6x-69 truck housing would be the right dimension or narrowing your current unit.

What year truck? What size & back-space on the wheels in question?

Bulldog88 · 03-08-2011, 10:39 AM

88 model truck the wheels are 22x 9.5 with a 4.5 backspace, what exactly is 6x-69s rear end

**N2TRUX** · 03-08-2011, 12:34 PM

Quote:

Originally Posted by Bulldog88

....what exactly is 6x-69s rear end

The x is a generic figure in the 6x-69 example. Such as 67-69...

03-07-2011, 03:50 PM	#1
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	Narrowing a rear end how hard is it to narrow a 10 bolt rear end I need it to measure 54 inches it measures 57 now from the backing plates. Do I have o get new axles or can you re spline the existing ones. Does anyone know or have an idea what this will cost?

03-07-2011, 04:22 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Narrowing a rear end not worth the money or effort compared to a pair of new wheels with a bit more backspacing __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-07-2011, 04:42 PM	#3
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	Re: Narrowing a rear end I wish I could I cant send them back Posted via Mobile Device

03-07-2011, 06:20 PM	#5
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,064	Re: Narrowing a rear end What year/model 10-bolt? __________________ 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.*

03-07-2011, 08:48 PM	#6
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	Re: Narrowing a rear end 10 ten out of an 88 model truck, how bout using an 94-96 impala ss rear end since it has disk brakes?

03-08-2011, 01:16 AM	#8
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	Re: Narrowing a rear end Yes I need 54 inches so my wheels will work, so it looks like I need some new axles Posted via Mobile Device

03-08-2011, 01:38 AM	#9
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,064	Re: Narrowing a rear end The 88-98 housings are about .750" wider per side vs. 71-87's. The 71-87's are .750" wider vs. the 6x-69's. Sounds line the 62" wheel mounting surface to WMS of the 6x-69 truck housing would be the right dimension or narrowing your current unit. What year truck? What size & back-space on the wheels in question? __________________ 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.*

03-08-2011, 10:39 AM	#10
Bulldog88 Registered User Join Date: Nov 2009 Location: DFW,TX Posts: 233	Re: Narrowing a rear end 88 model truck the wheels are 22x 9.5 with a 4.5 backspace, what exactly is 6x-69s rear end

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