Changing out 2.73 gears for 3.42 gears - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ECU PIRATE · 02-07-2011, 11:09 AM

Found an 85' LWB with a set of 3.42 gears in the rear and HD brake opion. How hard is it going to be for me to remove the gears? I ran accross this yesterday but, didn't have the time to jack it up and try and remove them.

thesickc10 · 02-07-2011, 11:31 AM

Quote:

Originally Posted by ECU PIRATE

Found an 85' LWB with a set of 3.42 gears in the rear and HD brake opion. How hard is it going to be for me to remove the gears? I ran accross this yesterday but, didn't have the time to jack it up and try and remove them.

if you just want the gears i'd buy them new. unless youre gonna take the whole rear.

**N2TRUX** · 02-07-2011, 11:42 AM

Can you buy the axle complete? Thats your best bet by far. By the time you take everything out of two axles and build your again, your better off starting with new gears.

silvereagle07 · 02-07-2011, 02:38 PM

Quote:

Originally Posted by N2TRUX

Can you buy the axle complete? Thats your best bet by far. By the time you take everything out of two axles and build your again, your better off starting with new gears.

McSwine · 02-07-2011, 04:15 PM

I would like to do this as well, but I don't have access to a complete axle. Where do y'all suggest buying just the gears? Any idea on how much someone is going to charge me to replace them?

87chevy.com · 02-07-2011, 10:21 PM

dont waste your money on some old gears.
1, they will wine and make noise becuase they are old and you will not get the same pattern as they came out
2, new gears range from 155-189 + new bearing master install kit ranging from 89-100.

if you cant afford new gears dont waste your money on some old worn gears, just save it till you can buy new. install ranges from 250 (bench job) - 275 in my area. If you bring them the truck its usually 100$ more.

02-07-2011, 11:09 AM	#1
ECU PIRATE Registered User Join Date: Apr 2009 Location: Centreville, Virginia Posts: 846	Changing out 2.73 gears for 3.42 gears Found an 85' LWB with a set of 3.42 gears in the rear and HD brake opion. How hard is it going to be for me to remove the gears? I ran accross this yesterday but, didn't have the time to jack it up and try and remove them. __________________ The Fleet........ 68' Camaro - 1st car (restored & still have it) 09' VW Tiguan (Wife's Daily Driver) 14' VW Passat SE TSI (my personal) 14' Ford Edge Sport (Daily Work Vehicle) 73' SWB Stepside - 77K org. miles 74' LWB 454/TH400 - drive train transplant for my (Sold) 98' SWB C1500 W/T - shop truck (Sold) 90' GMC Sierra SLE short step - aka " Jezabelle " (Sold)

02-07-2011, 11:42 AM	#3
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Changing out 2.73 gears for 3.42 gears Can you buy the axle complete? Thats your best bet by far. By the time you take everything out of two axles and build your again, your better off starting with new gears. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

02-07-2011, 04:15 PM	#5
McSwine Registered User Join Date: Jun 2007 Location: Arkanasas Posts: 85	Re: Changing out 2.73 gears for 3.42 gears I would like to do this as well, but I don't have access to a complete axle. Where do y'all suggest buying just the gears? Any idea on how much someone is going to charge me to replace them?

02-07-2011, 10:21 PM	#6
87chevy.com BMW & ASE Master Certified Join Date: Feb 2004 Location: Houston, Texas Posts: 1,261	Re: Changing out 2.73 gears for 3.42 gears dont waste your money on some old gears. 1, they will wine and make noise becuase they are old and you will not get the same pattern as they came out 2, new gears range from 155-189 + new bearing master install kit ranging from 89-100. if you cant afford new gears dont waste your money on some old worn gears, just save it till you can buy new. install ranges from 250 (bench job) - 275 in my area. If you bring them the truck its usually 100$ more. __________________ 1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress



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