What size spacer?
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From: Northwest Indiana, Kouts
Car: 88' White-Black Trans Am
Engine: Trying to find a motor
Transmission: 4L60E
Axle/Gears: 3.23
What size spacer?
I i love the stance of my Trans Am but i would like if the rear wheels stuck out just a little more. What size spacer would that be? One inch looked too big and risky.I want it to fit well,as in i dont want my lugs barely on the threads. Any ideas? If i cant do spacers thats alright as well
-DylanN
-DylanN
Joined: Aug 2006
Posts: 12,806
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: What size spacer?
I i love the stance of my Trans Am but i would like if the rear wheels stuck out just a little more. What size spacer would that be? One inch looked too big and risky.I want it to fit well,as in i dont want my lugs barely on the threads. Any ideas? If i cant do spacers thats alright as well
-DylanN

-DylanN

If you are using a slip on spacer, you have to make damn sure you have enough thread engagement left. In my book that's at least 1.5 times the stud diameter. If your studs are not long enough, you will have to change.them to longer ones and that may require removing the axle shafts to do.
Do you know.what wheels.specs you have now? Height width and offset?
Thread Starter
Senior Member
iTrader: (3)
Joined: May 2010
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From: Northwest Indiana, Kouts
Car: 88' White-Black Trans Am
Engine: Trying to find a motor
Transmission: 4L60E
Axle/Gears: 3.23
Re: What size spacer?
Ahh i see. And no im sorry i dont. Never really looked too far into it. I know theyre just 50's. Stock 16 inch Trans am rims.
This is what i want the stance to be
This is what i want the stance to be
Thread Starter
Senior Member
iTrader: (3)
Joined: May 2010
Posts: 976
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From: Northwest Indiana, Kouts
Car: 88' White-Black Trans Am
Engine: Trying to find a motor
Transmission: 4L60E
Axle/Gears: 3.23
Re: What size spacer?
Im not really familiar with tire details.What exactly do adapters do?Do you just mean To fit on a different lug pattern or for like Deep dish rims or...?
Joined: Aug 2006
Posts: 12,806
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: What size spacer?
You are splitting hairs. The difference in terminalogy is trivial here and telling the op to "just use adapters" is not really a answer to anything without some insite or explanation.
Op, in a perfect world, you would be better off without any spacer/adapter. Your factory 16x8 wheels have a different offset front and back, with the back wheels sitting in 5/8 more than the fronts. If you want, you can sell your 2 rear wheels and buy 2 front wheels, swap the tires and this will move the wheels out 5/8 per side. Further than you will be able to go with just a slip on spacer.
Now these adapters are bolt on spacers with their own lugs and lug nuts. The cost a lot more and will move the wheels out 1.25 to probably 4 depeding on the thickness you use. These double the ammount of lug nuts you have, and the adapters HAVE to be torqued properly, then retorqued a few times to be safe. That involves removing the wheels and tightening the inner lugs a few times over a week or two. This is needed because if the inner lug nuts get loose, you run the risk of the lugs failing and you will lose the wheel and possibly the entire car.
The car in the pic you posted looks to have factory 3rd gen wheels on a 4th gen axle. Th 4th gen axles are a couple inches longer. That's another option if you don't mind the work of swappping the axle. The other benifits are better brakes, a posi dif, and possibly a different gear ratio if you want that.
Keep in mind, if you move the whels out, and your suspension is tired, you may end up with the tires contacting the wheel well opening when driving and hitting a bump or having somebody in the back seat.
Honestly, I'm not a fan of the bolt on adapters/spacers. People use them, people use them on race cars, and most people are fine with them. I just wouldn't use them personally.
Op, in a perfect world, you would be better off without any spacer/adapter. Your factory 16x8 wheels have a different offset front and back, with the back wheels sitting in 5/8 more than the fronts. If you want, you can sell your 2 rear wheels and buy 2 front wheels, swap the tires and this will move the wheels out 5/8 per side. Further than you will be able to go with just a slip on spacer.
Now these adapters are bolt on spacers with their own lugs and lug nuts. The cost a lot more and will move the wheels out 1.25 to probably 4 depeding on the thickness you use. These double the ammount of lug nuts you have, and the adapters HAVE to be torqued properly, then retorqued a few times to be safe. That involves removing the wheels and tightening the inner lugs a few times over a week or two. This is needed because if the inner lug nuts get loose, you run the risk of the lugs failing and you will lose the wheel and possibly the entire car.
The car in the pic you posted looks to have factory 3rd gen wheels on a 4th gen axle. Th 4th gen axles are a couple inches longer. That's another option if you don't mind the work of swappping the axle. The other benifits are better brakes, a posi dif, and possibly a different gear ratio if you want that.
Keep in mind, if you move the whels out, and your suspension is tired, you may end up with the tires contacting the wheel well opening when driving and hitting a bump or having somebody in the back seat.
Honestly, I'm not a fan of the bolt on adapters/spacers. People use them, people use them on race cars, and most people are fine with them. I just wouldn't use them personally.
Last edited by //<86TA>\\; Dec 24, 2011 at 08:04 AM.
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