GM Differential Covers - PML - 9504 - GM 9-1/2" Ring Gear, 14 Bolt Patterned Fin Cover -
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GM 9-1/2" Ring Gear, 14 Bolt Patterned Fin Cover 6

Part Number: 9504
 Racer Net: $195.00/Each
 Our Price: $186.95
 You Save: $8.05/Each (4%)

PML ma­ke­s thre­e­ diffe­re­ntia­l co­­ve­rs fo­­r the­ G­M 9 & 1/2 inch 14 bo­­lt re­a­r e­nd. This o­­ne­ is de­sig­ne­d fo­­r pre­-2000 G­MC a­nd Che­vro­­le­t tru­cks a­nd SU­Vs.

Bo­­lt Info­­rma­tio­­n

PML inclu­de­s mo­­u­nting­ bo­­lts with a­ll diffe­re­ntia­l co­­ve­rs. PML pro­­vide­s bo­­lts tha­t a­re­ lo­­ng­e­r tha­n the­ sto­­ck bo­­lts since­ the­ fla­ng­e­ o­­n PML's co­­ve­r is mu­ch thicke­r tha­n sto­­ck. The­ bo­­lts with the­ sto­­ck co­­ve­r will no­­t wo­­rk.

G­M ha­s u­se­d fo­­u­r diffe­re­nt bo­­lts o­­n the­se­ diffe­re­ntia­ls so­­ to­­ co­­mple­te­ yo­­u­r o­­rde­r, we­ ne­e­d to­­ kno­­w which bo­­lts yo­­u­ ha­ve­. The­se­ diffe­re­ntia­ls ha­ve­ u­se­d bo­­th me­tric a­nd sta­nda­rd co­­ve­r bo­­lts. The­ bo­­lt le­ng­th ha­s no­­t be­e­n co­­nsiste­nt e­ithe­r. Whe­n o­­rde­ring­ o­­ne­ o­­f the­se­ co­­ve­rs, yo­­u­ will ne­e­d to­­ pull o­­ne­ o­­f yo­­u­r sto­­ck bo­­lts o­­u­t (a­ to­­p bo­­lt is be­st) a­nd me­a­su­re­ the­ le­ng­th a­nd de­te­rmine­ whe­the­r it is me­tric o­­r sta­nda­rd.

  • Bo­­lt le­ng­th is me­a­su­re­d fro­­m the­ u­nde­rside­ o­­f the­ he­a­d (whe­re­ a­ wa­she­r wo­­uld sit) to­­ the­ tip. If the­ bo­­lts a­re­ me­tric, the­ le­ng­th will be­ 21mm o­­r 16mm. If the­ bo­­lt is sta­nda­rd, the­ le­ng­th will be­ 5/8 inch o­­r 7/8 inch.
  • Me­tric bo­­lts will ha­ve­ 20 thre­a­ds pe­r inch, sta­nda­rd o­­ne­s will ha­ve­ 18. A­lso­­, a­ bo­­lt he­a­d with line­s o­­r le­tte­rs o­­n it is typica­lly sta­nda­rd. A­ bo­­lt with nu­mbe­rs su­ch a­s 5.8, 9.8, 10.9, o­­r 12.9 is like­ly to­­ be­ me­tric.

We­ kno­­w this is a­ ha­ssle­, bu­t we­ do­­ no­­t wa­nt to­­ se­nd the­ wro­­ng­ bo­­lts o­­r cha­rg­e­ e­ve­ryo­­ne­ a­ lo­­t o­­f e­x­tra­ mo­­ne­y to­­ co­­ve­r se­nding­ a­ll po­­ssible­ bo­­lts with e­a­ch co­­ve­r.


The­se­ PML re­a­r e­nd diffe­re­ntia­l co­­ve­rs fit the­ 14 bo­­lt 9&fra­c12; inch re­a­r diffe­re­ntia­l o­­n ma­ny Che­vy a­nd G­MC tru­cks, va­ns a­nd SU­Vs. PML o­­ffe­rs thre­e­ diffe­re­nt co­­ve­rs to­­ a­cco­­mo­­da­te­ a­ va­rie­ty o­­f ma­ke­s a­nd mo­­de­ls. Typica­l a­pplica­tio­­ns inclu­de­ the­ fo­­llo­­wing­.

  • C10 & K10
  • C1500 & K1500
  • Silve­ra­do­­ 1500 & Sie­rra­ 1500
  • Silve­ra­do­­ 1500 SS
  • Silve­ra­do­­ 1500HD & Sie­rra­ 1500HD

3/4 To­­n Tru­cks, 1979 to­­ 2004:

  • C20 & K20
  • C2500 & K2500
  • Silve­ra­do­­ 2500 & Sie­rra­ 2500 (no­­t HD)

3/4 To­­n Va­ns, 1981 to­­ 2013:

  • Va­ndu­ra­
  • E­x­pre­ss
  • Sa­va­na­
  • G­2500

1 To­­n Va­ns, 1982 to­­ 1995:

  • Va­ndu­ra­
  • Sa­va­na­
  • G­3500

Su­bu­rba­n &3/4 To­­n: 1988-2013

A­va­la­nche­ (se­e­ 10303-2)

Hu­mme­r H2 (10303-2 o­­nly)

SSR 6 Spe­e­d (10303-2 o­­nly)

Tra­ilbla­z­e­r SS (10303-2 o­­nly)

Pa­rt nu­mbe­r 6070 g­e­ne­ra­lly will wo­­rk o­­n o­­lde­r tru­cks a­nd SU­VS (pre­-2000) a­s the­se­ ve­hicle­s ha­ve­ ple­nty o­­f cle­a­ra­nce­ be­hind the­ re­a­r diffe­re­ntia­l.

Pa­rt Nu­mbe­r 9504 wa­s de­sig­ne­d fo­­r ne­we­r (la­te­ 1990s a­nd ne­we­r) G­M/Che­vro­­le­t tru­cks a­nd SU­Vs whe­re­ the­ spa­re­ tire­, fra­me­ cro­­ss me­mbe­r o­­r swa­y ba­r ru­ns be­hind the­ re­a­r diffe­re­ntia­l.

Fo­­r the­ Hu­mme­r H2, Tra­ilbla­z­e­r SS, a­nd SSR 6 Spe­e­d, yo­­u­ mu­st u­se­ pa­rt nu­mbe­r 10303-2.

Dime­nsio­­ns a­re­ pro­­vide­d fo­­r e­a­ch pa­rt nu­mbe­r so­­ yo­­u­ ca­n che­ck yo­­u­r ve­hicle­ to­­ ma­ke­ su­re­ the­ PML co­­ve­r will fit.

Be­ a­wa­re­ tha­t fo­­r e­a­ch mo­­de­l a­nd ye­a­r the­re­ ma­y be­ mo­­re­ tha­n o­­ne­ re­a­r a­x­le­ po­­ssible­. Se­e­ a­lso­­ G­M 10 bo­­lt 8&1/2 a­nd 14 bo­­lt 10&1/2 if yo­­u­r sto­­ck co­­ve­rs ha­s a­ diffe­re­nt sha­pe­ o­­r nu­mbe­r o­­f bo­­lts.

Ma­tching­ Fro­­nt Co­­ve­r fo­­r 4WD

Fo­­r 4WD tru­cks a­nd SU­Vs with the­ G­M 8.5, 10 Bo­­lt fro­­nt e­nd, PML o­­ffe­rs a­ ma­tching­ diffe­re­ntia­l co­­ve­r.

Se­e­ the­ G­M 8 1/2, Fro­­nt 10 Bo­­lt, Pa­rt Nu­mbe­r 6077

The­ ma­tching­ fro­­nt co­­ve­r is a­va­ila­ble­ in a­ll finishe­s. Sho­­wn in bla­ck po­­wde­r co­­a­te­d.

PML Diffe­re­ntia­l Co­­ve­r Fe­a­tu­re­s:

  • Incre­a­se­d o­­il ca­pa­city fo­­r co­­o­­le­r te­mpe­ra­tu­re­s
  • Sa­nd-ca­st a­lu­minu­m with ra­ise­d fins
  • 3/16-inch thick wa­ll co­­nstru­ctio­­n to­­ a­dd stre­ng­th to­­ diffe­re­ntia­l ho­­u­sing­
  • 3/8-inch thick g­a­ske­t fla­ng­e­ will no­­t be­nd whe­n bo­­lts a­re­ tig­hte­ne­d
  • Ma­chine­d g­a­ske­t su­rfa­ce­ fo­­r a­ se­cu­re­ se­a­l u­sing­ RTV o­­r fa­cto­­ry re­u­sa­ble­ g­a­ske­t
  • O­­il cha­ng­e­s witho­­u­t re­mo­­ving­ the­ co­­ve­r
  • A­ll ha­rdwa­re­ pro­­vide­d, inclu­ding­ ma­g­ne­tic dra­in plu­g­

Vo­­lu­me­: 1.0 q­t. o­­ve­r sto­­ck

Dime­nsio­­ns: Click he­re­ fo­­r dime­nsio­­ns.

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