Chassis Documentation - Revision history

Fmtaylor: /* VIN */

2026-11-01T10:23:41Z

VIN

← Older revision		Revision as of 05:23, 1 November 2026
Line 7:		Line 7:

	=== VIN ===		=== VIN ===
			[[File:IMG 1758.JPG\|right\|200px\|]]
	<code>1FDXB70K4JVA01204</code>		<code>1FDXB70K4JVA01204</code>

Fmtaylor: /* Buck tag */

2026-11-01T10:19:37Z

Buck tag

← Older revision		Revision as of 05:19, 1 November 2026
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	\| Axle \|\| <code>2MN</code> — '''pending decode'''		\| Axle \|\| <code>2MN</code> — '''pending decode'''
	\|-		\|-
	\| ~~DSO \|\| ''blank — DSO on separate tag''~~		\|
	\|}		\|}

Fmtaylor: /* DSO tag */

2026-11-01T10:19:06Z

DSO tag

← Older revision		Revision as of 05:19, 1 November 2026
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	'''VIN on buck tag matches jamb label exactly.''' Verified character for character.		'''VIN on buck tag matches jamb label exactly.''' Verified character for character.

	~~=== DSO tag ===~~

	~~Firewall-mounted. Partially illegible.~~

	~~{\| class="wikitable"~~
	\|-
	~~! Field !! Value~~
	\|-
	~~\| DSO \|\| <code>74</code>~~
	\|-
	~~\| Special order \|\| <code>3152</code>~~
	\|-
	~~\| Remainder \|\| Illegible — not scrubbed, preserved as-is~~
	\|}

	~~A DSO tag carrying a special order number is physical proof of a fleet special order. Match against the Marti invoice when it arrives.~~

	=== Fleet special-order options ===		=== Fleet special-order options ===

Fmtaylor: /* Buck tag */

2026-11-01T10:18:29Z

Buck tag

← Older revision		Revision as of 05:18, 1 November 2026
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	=== Buck tag ===		=== Buck tag ===
			[[File:IMG 1839.JPG\|right\|200px\|]]
			[[File:IMG 1840.JPG\|right\|200px\|]]
	Firewall-mounted, adjacent to VIN and DSO tag. Ford format ("Vehicle manufactured by Ford Motor Company, Made in USA").		Firewall-mounted, adjacent to VIN and DSO tag. Ford format ("Vehicle manufactured by Ford Motor Company, Made in USA").

Fmtaylor: /* See also */

2026-10-29T22:12:09Z

Fmtaylor: Created page with "== Chassis Documentation == {| class="wikitable" |- | '''Status''' || VIN, GVWR, and wheelbase '''confirmed and cross-checked'''. Trans and axle codes '''pending chart decode'''. |} === VIN === `1FDXB70K4JVA01204` Decode: {| class="wikitable" |- ! Position !! Value !! Meaning |- | 1FD || USA / Ford / incomplete vehicle (chassis cab) |- | X || Restraint / GVWR class code |- | B70 || Chassis series — medium-duty |- | K || Engine code — 429 |- | 4 || Che..."

2026-10-29T21:15:16Z

Created page with "== Chassis Documentation == {| class="wikitable" |- | '''Status''' || VIN, GVWR, and wheelbase '''confirmed and cross-checked'''. Trans and axle codes '''pending chart decode'''. |} === VIN === <code>1FDXB70K4JVA01204</code> Decode: {| class="wikitable" |- ! Position !! Value !! Meaning |- | 1FD || USA / Ford / incomplete vehicle (chassis cab) |- | X || Restraint / GVWR class code |- | B70 || Chassis series — medium-duty |- | K || Engine code — 429 |- | 4 || Che..."

New page

== Chassis Documentation ==

{| class="wikitable"
|-
| '''Status''' || VIN, GVWR, and wheelbase '''confirmed and cross-checked'''. Trans and axle codes '''pending chart decode'''.
|}

=== VIN ===

<code>1FDXB70K4JVA01204</code>

Decode:

{| class="wikitable"
|-
! Position !! Value !! Meaning
|-
| 1FD || USA / Ford / incomplete vehicle (chassis cab)
|-
| X || Restraint / GVWR class code
|-
| B70 || Chassis series — medium-duty
|-
| K || Engine code — 429
|-
| 4 || Check digit
|-
| J || Model year — 1988
|-
| V || Assembly plant — Kentucky Truck Plant (Louisville)
|-
| A01204 || Sequential production number
|}

'''Title and insurance must read 1988 and match the VIN exactly.''' The incomplete-vehicle build date is October 1987; the body is March 1988. Title as an 88.

=== GVWR and weights ===

{| class="wikitable"
|-
! Field !! Value
|-
| GVWR || 28,000 lb
|-
| GAWR front || 9,000 lb — 265/75R22.5, 22.5x7.5 rims, 120 psi cold, single
|-
| GAWR rear || 19,220 lb — 265/75R22.5, 22.5x7.5 rims, 110 psi cold, dual
|}

Front and rear GAWR sum to 28,220 lb; GVWR is set 220 lb below the axle sum. Rear axle is a heavy full-floating medium-duty unit — good margin for the blower plan.

'''Check:''' confirm current tires are rated for 120 psi cold front. A lower load-range tire makes the label pressure wrong and over-tires the steer axle.

=== Buck tag ===

Firewall-mounted, adjacent to VIN and DSO tag. Ford format ("Vehicle manufactured by Ford Motor Company, Made in USA").

{| class="wikitable"
|-
! Field !! Value
|-
| Wheelbase || <code>275</code> (275 in)
|-
| Type-GVW || <code>B70280</code> (B70 series, 280 = 28,000 lb class)
|-
| Body || <code>7</code>
|-
| Trans || <code>AA</code> — '''pending decode'''
|-
| Axle || <code>2MN</code> — '''pending decode'''
|-
| DSO || ''blank — DSO on separate tag''
|}

'''VIN on buck tag matches jamb label exactly.''' Verified character for character.

=== DSO tag ===

Firewall-mounted. Partially illegible.

{| class="wikitable"
|-
! Field !! Value
|-
| DSO || <code>74</code>
|-
| Special order || <code>3152</code>
|-
| Remainder || Illegible — not scrubbed, preserved as-is
|}

A DSO tag carrying a special order number is physical proof of a fleet special order. Match against the Marti invoice when it arrives.

=== Fleet special-order options ===

* Built-in traction sanders (hopper and dispenser — photograph mounting and frame attachment)
* Front tow hooks (factory option on B-series; photograph brackets)

Both point to a municipal or district fleet order, consistent with factory LPG.

=== Open items ===

* <code>AA</code> trans code — '''must resolve before the shop quotes'''. Build assumes C6; do not let a quote rest on that assumption.
* <code>2MN</code> axle code — ratio drives cruise rpm at 28,000 lb and blower gearing. Check for a ratio tag on a differential cover bolt or the housing.
* Both resolve via the Marti deluxe report.

=== Documentation ===

Photos filed: jamb label, buck tag, DSO tag, sander hopper and mounting, tow hook brackets.

=== See also ===

* [[Engine Identification]]
* [[Fuel System]]

← Older revision		Revision as of 17:12, 29 October 2026
Line 113:		Line 113:
	* [[Engine Identification]]		* [[Engine Identification]]
	* [[Fuel System]]		* [[Fuel System]]
			* [[ Bus_Specs_Start \| The Original Specifications ]]