90truckcab

Well-Known Member

• Nov 26, 2011

• #1

reet , been landed with an A reg ser 3, 88 hard back, couldnt engage any gears, just loud grinding noises, removed foot wells and seat box, lifted gear box and transfer + over drive out as one, on to bench , removed bell housing and pulled lay shaft out , to descover most of the teeth had been smashed off and wer floatin round in the oil the bearing supporting the layshaft had collapsed causing the dammage, it had obviously been driven with the dammage to its death , the gears had chewed a hole in the main gear casing towards the back under the revers idle gear, rendering it ****in useless, :doh:

the question is , i have a spare nearly new ser2a gear casing, internaly it looks the same, externaly the casting marks are very different etc, but stud patterns the same,
so.....can i use the ser2a main gear casing as a replacement for the shagged ser3 one, but use a new set of gears amd layshaft for the rebuid that will match the original suffix of the gear box???

any input apreciated , thanks,

 

jamesmartin

Well-Known Member

• Nov 26, 2011

• #2

no reverse idler sits about 4 mm different

 

90truckcab

Well-Known Member

• Nov 26, 2011

• #3

like i said, only had a quick look last night befor i locked up workshop for weekend, they looked very similar , but wil ave a good measure up ,

4mm , i think thats the start of me problems,

may get round it by using a set of ser2a gears in the box then ,

 

jamesmartin

Well-Known Member

• Nov 26, 2011

• #4

4mm is a guess but it is rev idler that sits different what suffix is yours

 

90truckcab

Well-Known Member

• Nov 26, 2011

• #5

not sure of suffix with out havin a good look over it , its gunna get a bucket of diesel over it on monday and a good jet wash , am workin in **** at the mo, bloody wust gear box iv seen fer a bit , rendered in cow **** and ep90,

 

M

mathewpink

New Member

• Nov 26, 2011

• #6

Why dont u just use series 2gears in it

 

90truckcab

Well-Known Member

• Nov 26, 2011

• #7

that was my next move

 

jamesmartin

Well-Known Member

• Nov 26, 2011

• #8

you can fit series 3 bell housing on 2a box ,but series 3 is better to drive,there will be sreies 3 cases about might even have one myself ,must get top with one though as machined together fit

 

90truckcab

Well-Known Member

• Dec 3, 2011

• #9

well ere we are, few pics from last week , picked these out the bucket after i drained the oil ,

the bearing supporting the lay shaft had colapsed, and unfortunitly chewed the casing up

most of the teeth on the lay shaft were chewed,.

me new plan is to swap the overdrive on to a ser2 box i have spare, swap the bell housing to a ser3 patern and do the swap , be a stronger box too

il strip th old un fer spares i think , **** all use fer awt else,

 

jamesmartin

Well-Known Member

• Dec 3, 2011

• #10

seies 2 wont be a stronger box ,though may get you going

 

90truckcab

Well-Known Member

• Dec 3, 2011

• #11

its gorra be better than that !