Can anyone recommend a shop I should take a rear end to, Oshawa to Port Perry areas??
I have a damaged spider gear. I have another rear end I was thinking taking the spider gears out of that to use for this one that's going in the truck, but I don't want to mess around with the rear end myself. And want someone to make sure it was assembled correct in the first place too. What would have caused a damaged gear like that anyways?
Those rear ends can be found very cheaply. If I were you, I'd replace the spider gears after cleaning out any shrapnel from the damaged gear, check the ring and pinion for damage, then spin in the other spider gears that you have (assuming they are the same) and that you reinstall any shims that came out with the old gears.
One other thought is to put the rear end that has the good spiders in as a complete unit.
One other possibility, if the complete, good spider gear rear end is too wide, would be to find another complete rear end in good condition that is the same width as the one in the truck.
Based on how quickly costs can rise at a shop, I'd inspect what you have and toss in the new spiders myself. Far as I know, the real important stuff in the rear end is the pinion to ring contact.
No idea why spider fail like that but the 7.5 is known as a weak rear end so if someone's been beating the hell out of that truck, it could explain why it failed.
Clean the housing good, inspect the ring and pinion, toss in new spiders and give it a go.
This is actually not the rear end in the truck now. The rear end in the truck as I bought it has 2.73's I think, doesn't feel right for the truck at all. Also the brackets and shock mounts are just horrible, welds are crap and they didn't even clean off the old mounts they hacked off, so the u-bolts are sitting on all kinds of chunks. And the hockey puck bump stops bolted to the frame etc.
So I had a friend of a friend with the exact same rear end (yes gm 7.5" out of an early 80's grand prix or monte carlo or something like that) but had richmond 3.73's in it. Was much cheaper to just get it and swap out the rear ends than to buy new gears and have them installed in the current rear end. So seemed like a good idea, just a bit of extra work to do. But I'd have a better mounted rear end. But then I saw the damaged spider gear yesterday when I pulled the cover off.
i play with this kind of stuff all the time, ive changed more gears in rears than i can recall, i could fix it up for you likely alot cheaper then a shop. if its out of the vehicle bring it over.
It looks like the axle side gear has some missing teeth also. If you decide to pull the carrier yourself, make sure you don't mix up the shims on the carrier bearings.
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i play with this kind of stuff all the time, ive changed more gears in rears than i can recall, i could fix it up for you likely alot cheaper then a shop. if its out of the vehicle bring it over.
I'll let you know if I need to take you up on that offer. Thanks man.
Ouch. Too bad you didn't pull the cover before you bought it
Regardless, I'd be bringing it to the attention of the seller, just to see what he has to say.
I don't know what conversation (if any) you had with the previous owner, but if he sold it to you as a "the rear end is good, just weld in your perches and go", then he should be shown the damage.
Makes you wonder why he removed this rear end in the first place
If you don't mind me asking, how much did you pay for it. Those rear ends can be found with Posi and factory 3.73 for around $400
I paid $200, was told the richmond gears were new then pulled outta the car soon after, The guy I bought it from never put the rear end in his car, so it's possible he never knew himself. He grabbed it off a guy to put in his car but never ended up doing it so just sat around. I did let my friend know so I'm sure he'll let his friend know that sold me the rear end.
But not gonna get too hung up on that right now, just wanna get things fixed up. He hooked me up with a deal on some new drums and shoes too, I picked up cylinders and spring kit online, cost me about $350 total for everything I think. Looks like it'll cost me a little bit more now. lol
-- Edited by Nickeleye on Thursday 27th of March 2014 05:24:07 PM
The spider gears should be able to be replaced without removing the centre section. I did this years ago on a Ford rear end, and it was a fairly quick easy fix.
-- Edited by hemi43 on Thursday 27th of March 2014 06:37:31 PM
Some of us younger Guys use cell phones to post on here and sometimes it's possible to accidentally hit the letter beside the one intended. You do know what a cell phone is, don't you ??
Some of us younger Guys use cell phones to post on here and sometimes it's possible to accidentally hit the letter beside the one intended. You do know what a cell phone is, don't you ??
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The spider gears should be able to be replaced without removing the centre section.
That's what I was thinking too. No removal of the carrier, no disruption of the pinion/ring mesh. Swap out the bad spider/side gears, drive it.
One thing you should take a good close look at is the condition of the brake backing plates. They are very well known for rusting out on those rears.
it may not be that simple, why did they break to begin with? ive had a lot of experience with axles and gears, I would be closely inspecting the carrier and other related components before simply installing other gears, not that I know jack according to some on here
You have to unlock the axle shafts to remove the side gears so you might as well remove the whole carrier. It's only 4 more bolts to undo and it will make it easier to properly clean all the broken teeth out of the housing. As I mentioned earlier, don't mix up the shims on the side bearings and you won't have to worry about changing any adjustments. It really isn't that difficult to repair.
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The lock pin for the shaft are noted for breaking on that rear end as well. Depending on which rear end you have in the truck now the yoke on your new rear end takes a u-joint with internal locking clips which could be different than the one in your truck.
