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11-04-2007, 07:49 AM
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#1 |
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Registered User
Join Date: Sep 2007
Location: caro, mi
Posts: 171
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GM55T rear ends
Hi Guys,
I've got a 60 stepside but I thought you guys might know the answer to my questions over here. As I understand it 55 to 64 1/2 ton 2WD GM pickups came with a GM 55T rear end. I've got a 3.90 gear in mine and want to go to a better highway gear. I've found 3.37 gears but the cheapest price I've seen is $350 (plus a kit) from Randy's Ring and Pinion. I couldn't find any GM 55T gears on the Richmond web site. Are there any other ratios available or any cheaper prices around?? Thanks for any suggestions. Last edited by fuelpump; 11-04-2007 at 08:58 AM. |
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11-04-2007, 08:45 AM
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#2 |
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Registered User
Join Date: Aug 2004
Location: North Carolina
Posts: 291
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Re: GM55T rear ends
Check with Patrick's. Sorry I don't have a link. They have 3.38 gears. Not cheap tho'. If no one on here has the info check with the classic truck mags for an ad.
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11-05-2007, 07:08 PM
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#3 |
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Registered User
Join Date: Jan 2007
Location: tacoma wa.
Posts: 1,037
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Re: GM55T rear ends
are your main concerns 6-lug and tall gears? toyota,jeep cherokee, 73'+ blazer and other suv's had 6-lug and taller gears. hey don't get me wrong i'm a chevy guy and a hot rodder at heart. dana built rearends for everything and still does.
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11-05-2007, 09:21 PM
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#4 |
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Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
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Re: GM55T rear ends
^^^^^^^^^ Like he said, you may want to look for a whole rear end that is the same width as yours and just weld or change the spring pads to match, and bleed the brakes. may save you some $$$
__________________
53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
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03-09-2012, 02:32 AM
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#5 |
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But Found Her 25yrs Later!
 
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,518
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Re: GM55T rear ends
I'm searching for the width (wms to wms) for the GM55T.
Anyone know it?
__________________
I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035 |
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03-09-2012, 08:17 AM
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#6 |
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Registered User
Join Date: Feb 2011
Location: Senatobia, MS
Posts: 1,294
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Re: GM55T rear ends
I believe 62" from WMS to WMS for the 55-57 trucks. I used a 12 bolt from a 64C10 with 3.07 gears and it worked great. I replaced the bearings, seals and fluid and welded on new leaf spring perches and cut off all the old stuff. Fits and rides good. Sorry, no pictures at the moment but check my build thread for updates.
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
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03-09-2012, 11:48 AM
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#7 | |
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But Found Her 25yrs Later!
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,518
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Re: GM55T rear ends
Quote:
From my searching the internet, I came up with 62" wms to wms also. Posted via Mobile Device
__________________
I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035 |
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