1984 Z28 rearend i want to put a posi unit with 373 or 355 gears in my rearend, can someone point me in the right direction ? Thanks |
Re: 1984 Z28 rearend Find a 90-92 rear with better rear brakes , limited slip and 3:23 or 3:42 ratio. These are 10-bolts with 28 spline axle shafts. |
Re: 1984 Z28 rearend You will need a 26 spline Eaton posi. an installation kit and a set of gears. There are no 3.55 gears for this rear end. Your other option would be a 3.42. Send me an email or PM if you want prices on the parts. |
Re: 1984 Z28 rearend
Originally Posted by DJP87Z28
(Post 4049767)
Find a 90-92 rear with better rear brakes , limited slip and 3:23 or 3:42 ratio. These are 10-bolts with 28 spline axle shafts. |
Re: 1984 Z28 rearend
Originally Posted by AKATDOG
(Post 4050336)
90-92 will this bolt straight in ? and should i go with 342 or 373 gears ? thanks. With a 700R4, probably 3.42's. JamesC |
Re: 1984 Z28 rearend
Originally Posted by JamesC
(Post 4050345)
Yes. With a 700R4, probably 3.42's. JamesC |
Re: 1984 Z28 rearend
Originally Posted by AKATDOG
(Post 4050374)
ok so 90 to 92 and doesnt matter on model ? and whats the benefit of 342 over 373 gears ? Thanks for the info https://www.thirdgen.org/forums/tran...42-3-73-a.html JamesC |
Re: 1984 Z28 rearend You will NOT find any stock 3:73 gear ratio in any 90-92 rear axle assemblies. |
Re: 1984 Z28 rearend
Originally Posted by DJP87Z28
(Post 4050409)
You will NOT find any stock 3:73 gear ratio in any 90-92 rear axle assemblies. JamesC |
Re: 1984 Z28 rearend thanks guys that user has a little diff setup to mine, i have a 350 with upgraded cam, lifters, intake, headers, exaust and a 650 carburetor with an auto 700r4 trans, anyone with a similar setup can point me to what gears im looking for, i also do a fair amout of highway driving... |
Re: 1984 Z28 rearend I would think that if you have a lot highway driving then you would want the the 3.42's. You'll probably get crappy gas mileage with either set of gears but better with the 3.42. It all depends what you are looking for. |
Re: 1984 Z28 rearend thanks ya it looks like the 342 are better for all around driving, ill have to start with that, thanks everyone for the info |
Re: 1984 Z28 rearend I've got a good set of used GM 3.42s. I sell used gears for $50 if you are interested. |
Re: 1984 Z28 rearend will a 28 spline posi(out of a 98 Camaro v6 auto) with 3:42 gears bolt into my rearend if i get a set of 28 spline axles from a 91 or 92 ? and how much would the axles cost cost approx. ? Thanks |
Re: 1984 Z28 rearend Yes, all you would need to do is install 28 spline axles. You could get a set from any '90 to '92 Camaro or Firebird. |
Re: 1984 Z28 rearend
Originally Posted by big gear head
(Post 4051185)
Yes, all you would need to do is install 28 spline axles. You could get a set from any '90 to '92 Camaro or Firebird. https://www.thirdgen.org/forums/tran...ing-axles.html JamesC |
Re: 1984 Z28 rearend Always replace the axle bearings and seals when installing new axles. |
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