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02-01-2016, 11:01 AM
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#1 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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71 Stepvan gear change
Been looking around and I'm having trouble finding the right series carrier. Research says we got a 3.73-4.10 gears and we're trying to go to a 3.08. I would love to put 3.08's on what I got but not sure if it will work. Thanks for any help.
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02-01-2016, 12:34 PM
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#2 |
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Proprietor of Dale's Corner
 
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,245
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Re: 71 Stepvan gear change
What size step van 1/2, 3/4 ton etc?
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man R.I.P. FleetsidePaul |
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02-01-2016, 12:47 PM
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#3 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
Half ton p10
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02-01-2016, 12:55 PM
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#4 |
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Member #1049
Join Date: Jun 2000
Location: Troy Montana
Posts: 3,940
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Re: 71 Stepvan gear change
A 3:08 ring and pinion will not fit on the carrier in your rear end, if your stepvan is a Chevy it should have a trailing arm rear suspension, you might just search around for 3:08 rear axle assembly out of a 71-72 Chevy pickup, a majority of them came with the 3:08 ratio and will bolt right into your P10
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02-01-2016, 01:03 PM
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#5 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
Are they the same width because it's bagged and pretty close as it is.
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02-01-2016, 01:04 PM
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#6 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
It's my wife's business vehicle btw.
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02-01-2016, 09:14 PM
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#7 |
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Member #1049
Join Date: Jun 2000
Location: Troy Montana
Posts: 3,940
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Re: 71 Stepvan gear change
If it is a 71 with the factory 5 lug axles, yes it is the same width as the pickups
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02-02-2016, 12:00 AM
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#8 |
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Registered User
Join Date: Jan 2012
Location: Henderson,TX
Posts: 336
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Re: 71 Stepvan gear change
check summit racing.com I was able to buy a3.73 that fit my 3.08 carrier and I think they sell 3.08 that will fit your carrier.
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02-03-2016, 01:52 PM
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#9 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
Thanks I'll check that out.
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02-03-2016, 02:01 PM
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#10 |
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Registered User
Join Date: Jan 2012
Location: Henderson,TX
Posts: 336
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Re: 71 Stepvan gear change
the brand I bought was Richmond gear
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02-03-2016, 02:05 PM
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#11 |
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Senior Member
Join Date: Nov 2001
Location: Rapid City, SD
Posts: 2,281
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Re: 71 Stepvan gear change
FYI... you may want to double check me on this... but...
I believe the wheel bolt pattern on your van may be 5 on 4-3/4" So swapping in a different rearend may lead to other changes, such as swapping your orig van housing axles back in or else a wheel change. But please double check your wheel bolt pattern as I could be wrong. Pick-ups are 5 on 5" and I think vans are 5 on 4-3/4"
__________________
My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
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02-03-2016, 03:18 PM
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#12 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
It is in fact 5 4-3/4. I guess I'll just buy a carrier and gears since it's prolly easier and maybe cheaper than a trans swap. I got lucky with the van, came with a small Chevy pattern and discs up front.
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02-03-2016, 03:21 PM
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#13 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
More pics here
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02-03-2016, 03:22 PM
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#14 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
Our daughter loves it....no surprise.
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02-03-2016, 03:42 PM
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#15 |
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Junior Member
Join Date: Jul 2002
Location: Scottsdale, AZ
Posts: 1,701
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Re: 71 Stepvan gear change
Super cool P10! Did you check your bolt pattern? My '73 is 5x5.
__________________
"I was patina when patina wasn't cool." 1973 Cheyenne SWB Sunset Gold / Frost White / Saddle |
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02-03-2016, 10:02 PM
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#16 |
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Registered User
Join Date: Jan 2016
Location: Granite city il
Posts: 9
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Re: 71 Stepvan gear change
I did not physically but that's what I read.
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