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| 84-87 rear spindle - why not swap out for a newer GM FWD spindle w/ large brakes? (Page 5/6) |
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mender
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MAY 27, 10:28 AM
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| quote | Originally posted by sourmash:
Trying to wrap my head around this as a newb. Thank you for the tutorial and hope I understand this.
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1. The top of the tube has a nut welded into it that the bolt through the tie rod hole threads into.
2. The hole was for a long bolt that I used as the lower ball joint pinch bolt for the trial fit. A nut was welded into the end of the horizontal tube so that the regular pinch bolt can hold the tube in place.
The long bolt allowed me to adjust the angle of the vertical tube. Once I was satisfied with the location of the outer toe link hole in reference to the centre of the lower ball joint, I tacked the top nut in place. I then took the long bolt out and welded the pinch bolt nut in place and finished the weld on the top nut.
Here's an end view showing the alignment of the outer toe link hole with the centre of the lower ball joint. The angle was quite close to what I was hoping to see, making for a fairly simple piece.
 [This message has been edited by mender (edited 05-27-2020).]
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jb1
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MAY 29, 03:21 AM
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I used Pontiac Transport uprights with caddy hubs rotors and calipers.. need to change to the larger ball joint and tierod ends, other than that pretty much bolt on... The Seville rear calipers should be bolt on. ------------------
3800sc plug and play harnesses for sale.
85GT Northstar/ 4t80e
Northstar Rebuild
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jscott1
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MAY 29, 03:49 AM
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| quote | Originally posted by jb1:
I used Pontiac Transport uprights with caddy hubs rotors and calipers.. need to change to the larger ball joint and tierod ends, other than that pretty much bolt on... The Seville rear calipers should be bolt on.
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The 84 to 87 have options... There is almost nothing that can be done for 88s.
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Will
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MAY 29, 10:32 AM
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| quote | Originally posted by jb1:
I used Pontiac Transport uprights with caddy hubs rotors and calipers.. need to change to the larger ball joint and tierod ends, other than that pretty much bolt on... The Seville rear calipers should be bolt on.
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The later model TransSport knuckles use the same brakes as the front of an LT1 4th Gen F-Body.[This message has been edited by Will (edited 06-04-2020).]
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qwikgta
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MAY 29, 03:39 PM
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[i][/i]
| quote | Originally posted by jb1:
I used Pontiac Transport uprights with caddy hubs rotors and calipers.. need to change to the larger ball joint and tierod ends, other than that pretty much bolt on... The Seville rear calipers should be bolt on.
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So the front struts (transport) bolt up and no issues with the rear geometry (Fiero)? When you check the part # it seams that similar year buick, pontiac, olds and chevy mid size cars use the same spindle, but I have not seen any threads with folks doing 3800 engine swaps using the spindle and hubs on swaps. If these parts fit the 84-87 year cars why are we not seeing more use? Also, the hub uses a 5x115 bolt pattern and again, I have not seen a lot of talk about folks swapping these spindles/hubs for a easy rim upgrade. Do I just need to do a better job reading old threads?[This message has been edited by qwikgta (edited 05-30-2020).]
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qwikgta
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MAY 29, 03:50 PM
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| quote | Originally posted by jscott1:
The 84 to 87 have options... There is almost nothing that can be done for 88s. |
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Its my opinion that is because the 88 rear spindle was an attempt to create a RWD spindle using FWD McPherson strut tech. You're not going to find any other FWD cars using the hybrid FWD/RWD tech that the 88s use. While the 88 is more like a true RWD spindle than the early years, it still uses that dam strut. Look at the Corvette and Viper they use a FWD spindle in the rear just like the 84-87 cars, but they machined the top to accept a tierod, and an actual control arm. Not sure of the exotic Mid-Engine cars, im sure they use something that is truly a RWD spindle but no way I can afford those parts anyway. I know that some of the more skilled of us have machined or modified strut spindles to accept control arms, but they are the exception and will never offer what they have done for sale. Too much liability.
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fieroguru
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MAY 29, 05:18 PM
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| quote | Originally posted by qwikgta:
[i][/i]
So the rear struts bolt up and no issues with the rear geometry? When you check the part # it seams that similar year buick, pontiac, olds and chevy mid size cars use the same spindle, but I have not seen any threads with folks doing 3800 engine swaps using the spindle and hubs on swaps. If these parts fit the 84-87 year cars why are we not seeing more use? Also, the hub uses a 5x115 bolt pattern and again, I have not seen a lot of talk about folks swapping these spindles/hubs for a easy rim upgrade. Do I just need to do a better job reading old threads? |
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There are the front struts, installed in the rear of the Fiero.
| quote | Originally posted by Fog:
1993-1995 Pontiac trans sport/Chevrolet lumina APV/Oldsmobile shilouette with 3800 engines used wheel bearings that had the same 33-spline receiver. Now, Using only the bearings inside a Fiero spindle would require milling, but instead, I used the whole spindle.
That had another problem. The Fiero ball joint was too small, so I measured the whole lower control arms, and they Fitted.
So all I wanted was 33 spline wheel bearings, but to have that without milling, I changed out lower control arm, outer tie rod end and spindle.
Bonus is, that I gained big vented rotors with 52mm calipers for brakes also. Also, minivan bolt circle is 5x115 witch is close enough to use Ford wheels(5x4.5" = 5x114.7). |
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sourmash
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MAY 29, 09:38 PM
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Well, there's another approach I hadn't read about before. Dustbuster vans still show up in the one yard I go to, but I can't remember the last time a 6000/Cutlass wagon was there.
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mender
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MAY 30, 11:06 AM
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qwikgta
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MAY 30, 11:10 AM
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| quote | Originally posted by fieroguru:
There are the front struts, installed in the rear of the Fiero.
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Sorry, fixed my sloppy question.[This message has been edited by qwikgta (edited 05-30-2020).]
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