More axle width info needed

[divorced]

I found this:

Spacing
[font=Arial, Helvetica, sans-serif]1-tons feature 40.5" perch spacing - whether C&C or pickup, whether SRW or DRW. 3/4-ton is 42.5" perch spacing. [/font]

Width's
[font=Arial, Helvetica, sans-serif]SRW 67.5" WMS-WMS

DRW 72" WMS-WMS

C&C 63.5" WMS-WMS

VAN 70" WMS-WMS

[/font][font=Arial, Helvetica, sans-serif][/font]

What is the spring perch spacing of front axles?

What is the WMS of a 14 bolt SF?

What is the WMS of a 12 bolt and 10 bolt rear?

What is the WMS of a D44/10 bolt 1/2 ton front?

What is the WMS of a D44/10 bolt 3/4 ton front?

What is the WMS of a D60 single wheel front?

What is the WMS of a D60 dually front?

 

[divorced]

ttt, anyone?

 

[dyeager535]

Whats WMS? I can check the 14SF I've got and the 10 bolt, but the 14SF I have no idea on original application, only that it's 6 lug.

 

[sweetk30]

w= wheel

m=mount

s=surface

 

[atho]

GM D60 SRW WMS = 69.5" (Dodge D60's are 67.5" if you care)
not sure on the DRW but i think its in the neighborhood of 77.5"

 

[R72K5]

cab and chassis 14FF are definitely 63.5 right ?

or ?

 

[Emmettology 101]

GM D60 SRW WMS = 69.5" (Dodge D60's are 67.5" if you care)
not sure on the DRW but i think its in the neighborhood of 77.5"

DRW 60's are 77"
SRW 60's are 69.5"


Spring perch width for a K5 in the rear is around 42.5" or 43". So you would need to get a 3/4 ton 14FFor 14SF to have the correct perch width if you dont want to move them.

Front perch width for a K5 is 32"(same for 10bolt, D44, 60, etc)

cab and chassis 14FF are definitely 63.5 right ?

Correct.

 

[R72K5]

ok welp then im leaving here in a bit to go measure up the axle on this 72 C-30 157" dually truck then, and try and find someone around there to talk to about it,


thanks

 

[spearchucker]

This post has some WMS to WMS measurements in it.

 

[dyeager535]

I didn't measure WMS, but it appears to me that the 14SF I installed in my truck yesterday is about 3" wider than the 10 bolt I pulled out, which doesn't agree with the findings of the post referenced above. Same measurement backing plate to backing plate of the 10 bolt, but the front and rear tires are now even in width, and it's obvious looking down from above the rear wheels, the stock tires/wheels are close to not completely fitting inside.

This is supposedly a 1997 Yukon (or whatever) axle, but it's been passed down a couple of times, and I don't know the actual origin. It's definitely not out of a solid axle truck, the hub is smaller than SFA truck wheel hubs. Brake drums appear to be "thicker" as well.

BTW, is WMS measured with the drums on for drum rears, since that IS the wheel mounting surface, or are we just talking the axle flange?

 

[CyberSniper]

GM Dana 60 front (single wheel) ...................69"
GM Dana 60 front (dual rear wheel) ................77" ; +4" on each side vs single wheel
GM 14 Bolt rear FF (single wheel) .................67"
GM 14 Bolt rear FF (dual wheel)....................63"
GM 14 Bolt rear SemiF (single wheel) ..............66"
GM Dana 44 Front (single wheel) ...................69" 8-lug; 67" 6-lug
GM 10 bolt front (single wheel) ...................69" 8-lug; 67" 6-lug
GM 14 Bolt rear (Van single wheel) ................70"
GM 12 and 10 bolt rear.............................64"
GM 14 bolt FF late model ....... depends on vehicle (truck, cube, drum, disc, ring gear)
GM 14 bolt SF late model ....... depends on vehicle (truck or van or SSR)

1/2 ton front axleshaft lengths:
The D44 shafts measure:
right - 36.13"
left - 18.31"
10B shafts measure:
right - 35.46"
left - 19.15"

 

[divorced]

This is supposedly a 1997 Yukon (or whatever) axle, but it's been passed down a couple of times, and I don't know the actual origin. It's definitely not out of a solid axle truck, the hub is smaller than SFA truck wheel hubs. Brake drums appear to be "thicker" as well.

Yep, the axles in the 88-98 IFS 4x4's are wider than most because of the offset wheels they use.

 

[R72K5]

i just measured a 72 older Eaton C&C dually axle and it is 64 or 64.5"

so now i another Q:


GM 14 Bolt rear FF (dual wheel)....................63"



is that for pickup,,,, or C&C,,, or what ?

pickup dually axle would be wider AFAIK

63 sounds like C&C dually width



thanks

 

[Emmettology 101]

i just measured a 72 older Eaton C&C dually axle and it is 64 or 64.5"

so now i another Q:

GM 14 Bolt rear FF (dual wheel)....................63"

is that for pickup,,,, or C&C,,, or what ?

pickup dually axle would be wider AFAIK

63 sounds like C&C dually width

thanks

C&C width....

 

[R72K5]

ok

good deal then

virtually same width then, even though body and axle model change

humm,.,.

interesting, but a good thing

if thisa 72 eaton turns out to be 4.56 instead of the 4.10 its supposed to be with the 350 and 4 speed combo then im gonna find a 1 ton C&C 14 FF 3.73(or 3.21)?

i may have no choice but to 14 FF it if the brakes are gone in the eaton,, in which they quite probably are by now,

ill have to move shocks, but oh well, thats easy cake

thanks