WANTED:3.73 Gears!!! Anyone - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevjayfsd · 11-19-2002, 01:01 PM

I have a 12 bolt diff. If anyone is wanting to sell pm me or post a reply...Thanks
Jason

**1971Stepside** · 11-19-2002, 01:05 PM

are you looking for the ring and pinion and gear set? Posi?

*Shane* · 11-19-2002, 01:31 PM

You have a PM.....

chevjayfsd · 11-19-2002, 01:31 PM

I have 3.07's right now and the diff. is in perfect shape. And i need everything to just get the 3.73's in. I think i might spool the gears instead of posi, or if someone knows about a substitution for posi, that would be most appreciated
Thanks
jason

mikep · 11-19-2002, 01:51 PM

The conventional wisdom is that spools are only for the dragstrip. Since I have in the past driven a spooled vehicle on the street for 20,000 or so miles I can say that you can get away with it IF...

You have large tires with high sidewalls that will flex

You dont make sharp U Turns often

You dont drive in snow or rain or ice much . Better slow to a crawl around corners if you do.

You Dont use C Clip axles ( physically impossible anyway )

Fact is you stand a good chance of breaking your axles with a spool on the street. I was using 31 spline Currie axles and I still twisted them some. If they were stockers I would probably have broken them . Its not a good idea.

brennecke · 11-19-2002, 02:47 PM

I have a set of 3.73 posi in a 6 lug axle. I'll trade you straight up for your 3.07 axle. You do the shipping.

chevjayfsd · 11-19-2002, 02:58 PM

I would But I don't have wheels for a 6 and i would rather have my 5's, And also have had a lot of feedback..
Thanks a million anyway
Jason

Gene · 11-19-2002, 03:17 PM

Can't you guys just swap out the axles? You keep your 5 lug axles and swap rear housings and gears? I dunno just a thought, I am also looking for a 3:73 posi, mine is a 3:07 5 lug posi.

*Shane* · 11-19-2002, 05:04 PM

Did you get the pics I emailed?

Just wanted to make sure.....

**1971Stepside** · 11-19-2002, 06:03 PM

If you guys can work out a swap that is the best deal.......but....if you end up needing to buy gears I think I would spend the little extra and get new ones. I wouldn't think saving a 100 bucks on 30 year old set ups is worth it. I just bought an Eaton 3.73 Posi from Randy's Ring and Pinion for $270. They matched Tom's differential price...they are normally $340. I got the ring and pinion for $150 and the install kit for $80. So, for around $500 it is all brand new. I know that is a lot but there is zero worry with it. Just my .02....

And again, if a trade can be made then that would be cool.

72MARIO · 11-19-2002, 06:51 PM

I am o most positive that the axels will swap except if the rear end 's changed width in 71 . because they are both 30 spline axels . the posi carrier in my truck is from a 69. Good luck

chevjayfsd · 11-19-2002, 07:15 PM

I'm Confused!!!!!

Should i buy new or can i get by with used????
And what can i use besides Posi($$$$)
I can cut costs way down if i by used....
Thanks
Jason

*Shane* · 11-19-2002, 07:49 PM

I have heard Pro's and Con's with these....and I have no experience with these either, but Loc-Rite is an alternative to a "posi" unit.
http://www.4x4cyberstore.com/website/lockright.html

Now.....The New VS. Used - I would buy new peices if it was me.....because it is gonna cost ya to have used peices installed in your rear-end if you pay to have someone else do it ... and what if, after having them installed, you find out they are noisey (aka:worn)? Then you gotta pay again to have them re-done...

Why pay to have used parts put in, when you can spend just a little more and have new parts put in that you know are good. May cost a little less at first....but could cost more later.....that's a chance you take every time you buy used parts.....

I had rather spend a little extra on new....and know I am getting good parts....especially when you are talking about spending that kind of money.

Just my take on things......

11-19-2002, 01:01 PM	#1
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	WANTED:3.73 Gears!!! Anyone I have a 12 bolt diff. If anyone is wanting to sell pm me or post a reply...Thanks Jason __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

11-19-2002, 01:05 PM	#2
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,929	are you looking for the ring and pinion and gear set? Posi? __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

11-19-2002, 01:31 PM	#4
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	I have 3.07's right now and the diff. is in perfect shape. And i need everything to just get the 3.73's in. I think i might spool the gears instead of posi, or if someone knows about a substitution for posi, that would be most appreciated Thanks jason __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290 Last edited by chevjayfsd; 11-19-2002 at 02:20 PM.

11-19-2002, 01:51 PM	#5
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	The conventional wisdom is that spools are only for the dragstrip. Since I have in the past driven a spooled vehicle on the street for 20,000 or so miles I can say that you can get away with it IF... You have large tires with high sidewalls that will flex You dont make sharp U Turns often You dont drive in snow or rain or ice much . Better slow to a crawl around corners if you do. You Dont use C Clip axles ( physically impossible anyway ) Fact is you stand a good chance of breaking your axles with a spool on the street. I was using 31 spline Currie axles and I still twisted them some. If they were stockers I would probably have broken them . Its not a good idea. __________________ No truck :-( Last edited by mikep; 11-19-2002 at 01:54 PM.

11-19-2002, 02:47 PM	#6
brennecke Registered User Join Date: Apr 2000 Location: Missouri Posts: 469	I have a set of 3.73 posi in a 6 lug axle. I'll trade you straight up for your 3.07 axle. You do the shipping. __________________ Never tire of doing what is right II Thess. 3:13 Northeast Missouri 71 LWB original 350 3/speed Soon to be 500

11-19-2002, 01:31 PM	#3
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	You have a PM.....

11-19-2002, 02:58 PM	#7
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	I would But I don't have wheels for a 6 and i would rather have my 5's, And also have had a lot of feedback.. Thanks a million anyway Jason __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

11-19-2002, 03:17 PM	#8
Gene Registered User Join Date: Aug 2002 Location: Muskogee, Oklahoma Posts: 2,914	Can't you guys just swap out the axles? You keep your 5 lug axles and swap rear housings and gears? I dunno just a thought, I am also looking for a 3:73 posi, mine is a 3:07 5 lug posi. __________________ 1971 SWB 4X4 Build BOARD MEMBER #5448 BOOMER SOONER!!!!

11-19-2002, 05:04 PM	#9
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Did you get the pics I emailed? Just wanted to make sure.....

11-19-2002, 06:03 PM	#10
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,929	If you guys can work out a swap that is the best deal.......but....if you end up needing to buy gears I think I would spend the little extra and get new ones. I wouldn't think saving a 100 bucks on 30 year old set ups is worth it. I just bought an Eaton 3.73 Posi from Randy's Ring and Pinion for $270. They matched Tom's differential price...they are normally $340. I got the ring and pinion for $150 and the install kit for $80. So, for around $500 it is all brand new. I know that is a lot but there is zero worry with it. Just my .02.... And again, if a trade can be made then that would be cool. __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

11-19-2002, 06:51 PM	#11
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	I am o most positive that the axels will swap except if the rear end 's changed width in 71 . because they are both 30 spline axels . the posi carrier in my truck is from a 69. Good luck __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

11-19-2002, 07:15 PM	#12
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	I'm Confused!!!!! Should i buy new or can i get by with used???? And what can i use besides Posi($$$$) I can cut costs way down if i by used.... Thanks Jason __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

11-19-2002, 07:49 PM	#13
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	I have heard Pro's and Con's with these....and I have no experience with these either, but Loc-Rite is an alternative to a "posi" unit. http://www.4x4cyberstore.com/website/lockright.html Now.....The New VS. Used - I would buy new peices if it was me.....because it is gonna cost ya to have used peices installed in your rear-end if you pay to have someone else do it ... and what if, after having them installed, you find out they are noisey (aka:worn)? Then you gotta pay again to have them re-done... Why pay to have used parts put in, when you can spend just a little more and have new parts put in that you know are good. May cost a little less at first....but could cost more later.....that's a chance you take every time you buy used parts..... I had rather spend a little extra on new....and know I am getting good parts....especially when you are talking about spending that kind of money. Just my take on things...... Last edited by Shane; 11-19-2002 at 07:54 PM.



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