sorry have to ask width question

[stoney126]

I need a 67 inch 14ff bolt for my blazer correct? ya I searched

 

[chris walker]

yep but I think it 65 with 42 1/2 spring spacing

 

[stoney126]

the bible has them listed as 63" and 67" WMS. Not real worried about the perches if they fit great but if not meh more of a reason to buy a welder

 

[divorced]

Here is some info I have collected from the net and saved on my computer... I have never measured though.



GM 14 Bolt rear FF (single wheel) ....................67"

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

GM 10 & 12 bolt rear ..................... 65"




GM 14 Bolt rear (Van single wheel) ...............70"



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 Dana 60 front (single wheel) ...................69"

GM Dana 60 front (dual rear wheel) ..............77" ; +4" on each side vs single wheel





1-tons feature 40.5" perch spacing - whether C&C or pickup, whether SRW or DRW. 3/4-ton is 42.5" perch spacing.



.

 

[dremu]

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

That one is the C&C ... there is also a WIIIDE dually 14BFF, which is the same WMS as a D70HD. Mostly you find them in '88+ NBS rigs, but I have heard tell that they show up in late 80's trucks now and again.

-- A