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Author Topic: Rear axle question  (Read 3964 times)

Offline bidda-boy

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Rear axle question
« on: January 10, 2011, 02:57:57 pm »
could anyone give me some info  on swapping rearends  will a rearend from a 1990 1500 fit in a 1987 1/2 ton? I know its a 6lug axle but that does not cocern me. Are the spring mounts the same? and is width same?  thanks for any info if you can help cheers
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Offline 4x4orbust

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Re: Rear axle question
« Reply #1 on: January 10, 2011, 04:01:58 pm »
the spring perch width is different, i believe. otherwise you should be good on WMS widths.
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1982 chevy K-10 SWB, 355 th350/np208. 2.5"lift, 33" swampers, headers/duals,  current project

Offline bidda-boy

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Re: Rear axle question
« Reply #2 on: January 10, 2011, 04:05:45 pm »
do you mean the width between spring perches is different or the sprig perch itself is a different width   Thanx
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Offline zieg85

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Re: Rear axle question
« Reply #3 on: January 10, 2011, 06:08:39 pm »
A fella purchased a rear end from me from a 91 C2500 I was parting out.  This was for an earlier GM like ours and said it was the right width but he had to redo the spring perches, but I haven't measured it myself, the truck is long gone...
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Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline 4x4orbust

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Re: Rear axle question
« Reply #4 on: January 10, 2011, 09:25:12 pm »
width between the spring perches is different.
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1982 chevy K-10 SWB, 355 th350/np208. 2.5"lift, 33" swampers, headers/duals,  current project

Offline Captkaos

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Re: Rear axle question
« Reply #5 on: January 11, 2011, 03:41:50 pm »
spring perch width is different, you have to move them as stated.
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