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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> Tell me about spools and the GM 10 bolt.
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Topic Review (Newest First)
04-08-2013 11:12 AM
big gear head If that one breaks you don't have to worry about the wheel coming off or the axle coming out. You will just be stuck wherever you are.
04-08-2013 10:37 AM
Slammedsi
Quote:
Originally Posted by cobalt327 View Post
Slammed, I'm real glad to see that you're not looking to weld the spider gears or something along those lines!

A page w/some options for what type of rearend to use can be seen here.

Good luck.
Haha funny you ask that. I also have a 85 k20 with a simi float 14 bolt. I welded the rear spiders on it. BUT... it never sees street use and is used for mud bogs. It sets on a set of 40 inch boggers.
04-08-2013 08:10 AM
cobalt327
Quote:
Originally Posted by Slammedsi View Post
looking to add a spool or mini spool to a GM 8.5 10 bolt. I wanted to know what y'all think should be used. Mini or a full spool? Being used for burnout contests and 1/8th mile runs some where in the upper 8's on drag radials.
Slammed, I'm real glad to see that you're not looking to weld the spider gears or something along those lines!

A page w/some options for what type of rearend to use can be seen here.

Good luck.
04-07-2013 08:38 AM
Slammedsi
Quote:
Originally Posted by big gear head View Post
GM upgraded the 8.5 to 30 spline in '90, so all 8.5 rear ends from '90 and up are 30 spline.
Thanks biggear
04-07-2013 07:59 AM
big gear head GM upgraded the 8.5 to 30 spline in '90, so all 8.5 rear ends from '90 and up are 30 spline.
04-06-2013 09:45 PM
tresi Most mini spools manufactures do not recommend mini spols to be used on pavement. If you wanting a locked axle just get a spool. I think it was summit that came out with some really inexpensive spools. Ford mini spools are slightly stronger than GM units. GM mini spools are slightly better "Lincoln lockers". Just my opinion.
04-06-2013 09:00 PM
Slammedsi
Quote:
Originally Posted by big gear head View Post
'92 will be 30 spline.
Thanks big gear, Is it just based on years. Or is there a visual difference?
04-06-2013 05:23 PM
big gear head '92 will be 30 spline.
04-06-2013 01:27 PM
lmsport The last image is of a 1-ton axle after the hub locknut has come off taking the hub and the axle shaft.
04-06-2013 12:16 PM
Slammedsi Is there a way to find out if the axles are 28, 30, 33 without pulling the diff cover and digging in. Rearend is from a 92 suburban.
04-06-2013 09:51 AM
Slammedsi Ya I know the entire shaft will come out if the c clips break.
04-06-2013 09:23 AM
S10xGN Here's some "food for thought" on what happens to a c-clip axle when it breaks:







HTH,

Russ
04-05-2013 08:59 PM
Slammedsi
Quote:
Originally Posted by vinniekq2 View Post
racing only? kind of a pain on the street if you need to turn corners or parallel park
I understand that the are not safe for street use. There will be non
Just track use. I have read where peple have broken mini spools. Saying that they are not as strong as a full spool. I haven't used them so I was not sure.
04-05-2013 08:15 PM
big gear head If you are not going to use c clip eliinators then you will have to use a mini spool. If you are going to use c clkp eliminators then a spool is best.

If this will be used on the street at all then a spool of any kind is a bad idea. They are dangerous on the street.
04-05-2013 08:13 PM
vinniekq2 racing only? kind of a pain on the street if you need to turn corners or parallel park
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