Drop Spindles & Track Width

[SactoJim]

Hi All,
Been a long time since I've been on here!
Does anyone know FOR SURE what drop spindles are out there that DO NOT change track width? It seems many drop spindles will alter track width.
I believe that CPP has a 2" drop modular that doesn't change track width. Are there any 2.5" out there that don't alter track width??
I have an old school drop on my truck......dropped A-Arms and springs and am finally getting around to fixing that so suspension geometry is better. I cannot change track width one bit since my wheels have specific offsets. I figure I have about a 4-4.5" drop in the front. I've had this truck for so long that I don't recall the exact specs of the drop and want to keep it exactly as is. Thanks for any help.....Jim

[LockDoc]

-
Hey Jim, I can't help with your question but it's good to see you posting again. Someone will post up that can answer your question I'm sure.

LockDoc

[lolife99]

As far as I know the CPP 2” modular spindles are “suppose” to have the narrowest track width for a disc brake spindle. It’s never been proven to me.
Wilwood also has a new spindle for the C10 market. Still no info on track width.

[lolife99]

Your choice it to pick a spindle and if it’s too wide either:
1) run different backspace wheels
Or
2) buy narrowed a-arms.

[Grumpy old man]

Check the CPP CP4S4 2 1/2" drop . They are advertised to NOT change track width . I got mine thru Summit ($259.00) and found them listed by CPP on Ebay for $215.00 So I called Summit and they price matched them and had free shipping .

[lolife99]

SactoJim please take some before and after measurements.

[60chevyc10]

Hi if you go to the CCP catalog the modular spindles are 2 1/2 drop. You will need to purchase the caliper plate if your using GM calipers & 12 x 1 1/4 HD rotors. They are not suppose to alter track, I bought for my 60 c-10.

[mcm1209]

I just bought the Wilwood Pro Spindles and didn't even think about track width. Ill be able to check this weekend. That's when I pick up my chassis.. it still has stock suspension. If it does change it ill just order the 1" narrow arms when it comes time to.

[SactoJim]

Thanks for the input guys!

[68Stepbed]

Jim, can you post a photo of the current spindles?

[SactoJim]

Originally Posted by 68Stepbed

Jim, can you post a photo of the current spindles?

No.....still on the truck. They are the stock 72 spindles.

[KevsClassics]

Originally Posted by SactoJim

Hi All,
Been a long time since I've been on here!
Does anyone know FOR SURE what drop spindles are out there that DO NOT change track width? It seems many drop spindles will alter track width.
I believe that CPP has a 2" drop modular that doesn't change track width. Are there any 2.5" out there that don't alter track width??
I have an old school drop on my truck......dropped A-Arms and springs and am finally getting around to fixing that so suspension geometry is better. I cannot change track width one bit since my wheels have specific offsets. I figure I have about a 4-4.5" drop in the front. I've had this truck for so long that I don't recall the exact specs of the drop and want to keep it exactly as is. Thanks for any help.....Jim

Hey Jim truck is Timeless. I still love it.

[SactoJim]

Well thank you sir! I surely don't mess with it as much as I used to and it sits most of the time......keep telling myself I need to get it out more!

Originally Posted by KevsClassics

Hey Jim truck is Timeless. I still love it.

[68Stepbed]

I'm not 100% on this, but to my understanding, the drop spindles don't change the track width on 71-72 trucks. It does change it on the 67-70 trucks that originally had 6 lug drum brakes.

The standard disc brake setup on the 71-72s had the wider track width due to nature of the brake setup. This is why the 71-72 rearends were wider as well.

Anyone is welcome to prove me wrong and I won't be upset with them.

[Grumpy old man]

Originally Posted by 68Stepbed

I'm not 100% on this, but to my understanding, the drop spindles don't change the track width on 71-72 trucks. It does change it on the 67-70 trucks that originally had 6 lug drum brakes.

The standard disc brake setup on the 71-72s had the wider track width due to nature of the brake setup. This is why the 71-72 rearends were wider as well.

Anyone is welcome to prove me wrong and I won't be upset with them.

OK !

http://67-72chevytrucks.com/vboard/s...d.php?t=780086



1963-70 CHEVY C10 TRUCK DISC BRAKE CONVERSION LOWERING 2.5" DROP SPINDLES
Will Not Widen The Track Width..CPP EXCLUSIVE!!



https://www.ebay.com/itm/1963-70-CHE...S/282394125161

[Daaaanz67]

Following.

[SactoJim]

Thanks a ton for the info guys......reminds me to be more active on here again since everyone is so helpful!

My plan will be to go with the CPP 2.5" the "Grumpy" suggested and I will also be replacing my old school stepped A-Arms with lower tubulars from either POL or CPP.....they both are in the +$500 range (anyone have experience with one or the other......opinions appreciated)

I think I will also have to change sway bars to work with the new tubular lower arms. I'm sure on the POL arms but not sure on the CPP arms.....again....any experiences?

Going to go with new 2" drop springs as well so hoping drop will be similar to the way it sits now as I have no rubbing issues at all and ground clearance is just fine. Total drop would be 4.5" so I'm concerned it may to too low....we will see. Would appreciate measurements (mid fender lip to wheel center) that anyone has so I could nail this down. Right now I'm at 14.5".

Finally new shocks.....opinions appreciated again! Right now I have 30 yo KYB gas-adjusts on it that believe it or not, seem fine but I would like to put some new shocks on. Would love to do Bilsteins but they are so damn much $$ and I'm just probably gonna buy new KYB's again.

[68Stepbed]

Originally Posted by SactoJim

Thanks a ton for the info guys......reminds me to be more active on here again since everyone is so helpful!

My plan will be to go with the CPP 2.5" the "Grumpy" suggested and I will also be replacing my old school stepped A-Arms with lower tubulars from either POL or CPP.....they both are in the +$500 range (anyone have experience with one or the other......opinions appreciated)

I think I will also have to change sway bars to work with the new tubular lower arms. I'm sure on the POL arms but not sure on the CPP arms.....again....any experiences?

Going to go with new 2" drop springs as well so hoping drop will be similar to the way it sits now as I have no rubbing issues at all and ground clearance is just fine. Total drop would be 4.5" so I'm concerned it may to too low....we will see. Would appreciate measurements (mid fender lip to wheel center) that anyone has so I could nail this down. Right now I'm at 14.5".

Finally new shocks.....opinions appreciated again! Right now I have 30 yo KYB gas-adjusts on it that believe it or not, seem fine but I would like to put some new shocks on. Would love to do Bilsteins but they are so damn much $$ and I'm just probably gonna buy new KYB's again.

Just remember, Grumpy is showing the CPP spindles for 63-70 trucks. 71-72s already have the wider track width.

[68Stepbed]

Originally Posted by Grumpy old man

OK !

http://67-72chevytrucks.com/vboard/s...d.php?t=780086



1963-70 CHEVY C10 TRUCK DISC BRAKE CONVERSION LOWERING 2.5" DROP SPINDLES
Will Not Widen The Track Width..CPP EXCLUSIVE!!



https://www.ebay.com/itm/1963-70-CHE...S/282394125161

Other than these CPP spindles, all other brands do widen the 63-70 track width. This still doesn't prove that other spindles widen the 71-72 track width anymore than stock.

[Grumpy old man]

How about these for 71-72 ?

"Will not widen track width "

https://www.ebay.com/itm/1971-1972-C...gAAOSwZQRYZD2o

[3767]

Ive had the cpp spindles and they didnt change my track width. As 4 the sway bar, I ran theirs as well. I will tell u that I drilled a small hole n the mounts and put n a grease fitting. They used the poly bushings and u will need to keep some grease on them or they will squeak. The tubular arms I have now are not cpp but I can say they are stronger than the factory stuff. Looking at your photo, the ride height will b close to what u got. You look like u have close to, if not a 4/6 drop.
Jim I have a question for u. Your tire series was a 55 if memory serves me right. As time has went by, some of the 18 in tires are hard to get. I was wondering if u have had trouble getting your old size or have u had to change to something different?

[SactoJim]

Thanks for the info.
Still have same tires on it. The fronts are 255/50/18 and rears are 275/55/18......and yes, gonna be hard to find the rears when the time comes....especially if I want all tires to match.

Originally Posted by 3767

Ive had the cpp spindles and they didnt change my track width. As 4 the sway bar, I ran theirs as well. I will tell u that I drilled a small hole n the mounts and put n a grease fitting. They used the poly bushings and u will need to keep some grease on them or they will squeak. The tubular arms I have now are not cpp but I can say they are stronger than the factory stuff. Looking at your photo, the ride height will b close to what u got. You look like u have close to, if not a 4/6 drop.
Jim I have a question for u. Your tire series was a 55 if memory serves me right. As time has went by, some of the 18 in tires are hard to get. I was wondering if u have had trouble getting your old size or have u had to change to something different?

[SactoJim]

What lower arms do you have?

Originally Posted by 3767

Ive had the cpp spindles and they didnt change my track width. As 4 the sway bar, I ran theirs as well. I will tell u that I drilled a small hole n the mounts and put n a grease fitting. They used the poly bushings and u will need to keep some grease on them or they will squeak. The tubular arms I have now are not cpp but I can say they are stronger than the factory stuff. Looking at your photo, the ride height will b close to what u got. You look like u have close to, if not a 4/6 drop.
Jim I have a question for u. Your tire series was a 55 if memory serves me right. As time has went by, some of the 18 in tires are hard to get. I was wondering if u have had trouble getting your old size or have u had to change to something different?

[3767]

I have the ride tech upper and lower. The big difference I see in them and some of the others is they have 8 degrees alignment where others only have 4. I can say they are well made here n the US. I changed my front end from the cross member out to the wheel. Even the steering linkage along with the gear box and steering shaft. I feel you on the tires. I don’t want to go to much bigger. I have a 3.73 and I don’t want to get so big that it turns in to a 3.42 due to the tires.

[SactoJim]

You must have their coil over setup? I don't see on their website any control arms for standard springs.

Originally Posted by 3767

I have the ride tech upper and lower. The big difference I see in them and some of the others is they have 8 degrees alignment where others only have 4. I can say they are well made here n the US. I changed my front end from the cross member out to the wheel. Even the steering linkage along with the gear box and steering shaft. I feel you on the tires. I don’t want to go to much bigger. I have a 3.73 and I don’t want to get so big that it turns in to a 3.42 due to the tires.